Test 2 GPT Questions Flashcards
1
Q
In academic research, the process of reviewing existing literature to identify gaps and establish the context for a study is primarily part of:
Select one:
a. Developing the theoretical framework
b. Formulating research questions
c. Designing the research methodology
d. Analyzing the research data
e. Writing the conclusion
A
Answer:
a. Developing the theoretical framework
Explanation:
Reviewing existing literature is a crucial part of developing the theoretical framework for a study. It helps to identify gaps in existing knowledge, establish the context for the study, and inform the development of research questions and hypotheses.
2
Q
Which of the following is crucial in the process of formulating a hypothesis in research?
Select one:
a. Collecting and analyzing data
b. Reviewing the study’s budget and resources
c. Identifying a testable prediction based on theory
d. Selecting the research participants
e. Choosing the data analysis software
A
Answer:
c. Identifying a testable prediction based on theory
Explanation:
Formulating a hypothesis involves identifying a testable prediction that is based on existing theories or observations. It is a statement that can be tested through empirical research.
3
Q
The process of conceptualizing variables in a study, such as defining what is meant by “job satisfaction” or “organizational commitment,” is an example of:
Select one:
a. Operationalization
b. Hypothesis testing
c. Data collection
d. Methodological design
e. Empirical validation
A
Answer:
a. Operationalization
Explanation:
Operationalization involves defining the variables used in a study in a clear and measurable way. This process includes defining concepts like “job satisfaction” or “organizational commitment” so they can be empirically measured.
4
Q
A researcher conducting a study on the impact of leadership styles on employee performance would initially need to:
Select one:
a. Determine the statistical tests to be used
b. Develop a theoretical framework linking leadership styles to performance
c. Select the software for data analysis
d. Choose the geographical location of the study
e. Conduct a pilot study
A
Answer:
b. Develop a theoretical framework linking leadership styles to performance
Explanation:
Initially, the researcher would need to develop a theoretical framework that outlines how different leadership styles might impact employee performance. This framework guides the study’s direction and the formulation of research questions and hypotheses.
5
Q
In a study exploring the effects of social media on mental health, the step where a researcher determines how “mental health” and “social media usage” will be measured and observed is known as:
Select one:
a. Hypothesis formulation
b. Conceptual definition
c. Operationalization
d. Methodology design
e. Variable classification
A
Answer:
c. Operationalization
Explanation:
Operationalization refers to the process of defining how variables will be measured and observed in a study. In this case, it involves deciding on the specific methods to measure and observe “mental health” and “social media usage.”
6
Q
In a study examining the effects of sleep on cognitive performance, where sleep is manipulated through various interventions, sleep is the:
Select one:
a. Dependent variable
b. Independent variable
c. Confounding variable
d. Control variable
e. Moderating variable
A
Answer:
b. Independent variable
Explanation:
In this study, sleep is the independent variable because it is being manipulated through different interventions to observe its effect on cognitive performance (the dependent variable).
7
Q
A research study aims to understand if the level of customer service (high, medium, low) impacts customer satisfaction ratings. In this study, the level of customer service is the:
Select one:
a. Dependent variable
b. Independent variable
c. Mediating variable
d. Moderating variable
e. Control variable
A
Answer:
b. Independent variable
Explanation:
The level of customer service is the independent variable as it is the factor being varied or manipulated to assess its impact on customer satisfaction ratings (the dependent variable).
8
Q
In a randomized controlled trial testing the effectiveness of a new medication, the group that receives a placebo is known as the:
Select one:
a. Treatment group
b. Control group
c. Experimental group
d. Baseline group
e. Variable group
A
Answer:
b. Control group
Explanation:
In a randomized controlled trial, the control group is the group that receives a placebo or standard treatment for comparison purposes. This group serves as a benchmark to measure the effects of the new medication (tested in the treatment or experimental group).
9
Q
When a researcher measures the impact of different teaching methods on student learning outcomes, ‘student learning outcomes’ are the:
Select one:
a. Dependent variable
b. Independent variable
c. Control variable
d. Confounding variable
e. Mediator variable
A
Answer:
a. Dependent variable
Explanation:
Student learning outcomes in this scenario are the dependent variable, as they are the outcomes being measured to assess the impact of the independent variable, which is the different teaching methods.
10
Q
In a study investigating the relationship between exercise and mental health, if researchers also consider the age of the participants, age is acting as a:
Select one:
a. Dependent variable
b. Independent variable
c. Mediating variable
d. Moderating variable
e. Control variable
A
Answer:
d. Moderating variable
Explanation:
Age in this study would be considered a moderating variable. A moderating variable is one that might affect the strength or direction of the relationship between the independent variable (exercise) and the dependent variable (mental health).
11
Q
In a research study, the statement “Increased social media use leads to higher levels of loneliness among teenagers” is an example of a:
Select one:
a. Research question
b. Theory
c. Hypothesis
d. Conceptual definition
e. Statistical analysis
A
Answer:
c. Hypothesis
Explanation:
This statement is an example of a hypothesis. It proposes a specific, testable prediction about the relationship between two variables: the level of social media use (independent variable) and the level of loneliness (dependent variable) among teenagers.
12
Q
A statement that proposes a broad explanation for a wide range of phenomena and is supported by a large body of evidence is known as a:
Select one:
a. Hypothesis
b. Theory
c. Research question
d. Conceptual model
e. Generalization
A
Answer:
b. Theory
Explanation:
A theory is a broad explanation for a wide range of phenomena. It is generally supported by a substantial body of evidence and research, and it helps to frame how researchers think about different problems or issues.
13
Q
In a study exploring the impact of diet on health, the statement “People who eat a balanced diet have a lower risk of heart disease” would be classified as a:
Select one:
a. Research objective
b. Hypothesis
c. Data collection method
d. Theoretical framework
e. Survey question
A
Answer:
b. Hypothesis
Explanation:
This statement is a hypothesis. It posits a testable prediction about the relationship between two variables: eating a balanced diet (independent variable) and the risk of heart disease (dependent variable).
14
Q
The question “How do consumers perceive the value of organic food products?” is an example of a:
Select one:
a. Hypothesis
b. Research question
c. Theory
d. Methodological approach
e. Data analysis technique
A
Answer:
b. Research question
Explanation:
This is a research question. It is an open-ended question aimed at exploring and understanding consumers’ perceptions of the value of organic food products.
15
Q
A conceptual framework in a research study is primarily used to:
Select one:
a. Analyze collected data
b. Formulate hypotheses
c. Define operational variables
d. Organize and interpret the relationships among key concepts and variables
e. Determine the research methodology
A
Answer:
d. Organize and interpret the relationships among key concepts and variables
Explanation:
A conceptual framework in a research study is used to organize and interpret the relationships among the key concepts and variables. It provides a structured way to look at and understand the study’s focus.
16
Q
A researcher wants to determine if the relationship between exercise frequency and mental health differs based on age. In this scenario, age is considered a:
Select one:
a. Dependent variable
b. Independent variable
c. Mediator variable
d. Moderator variable
e. Control variable
A
Answer:
d. Moderator variable
Explanation:
Age in this scenario is a moderator variable. It is being used to examine whether the effect of exercise frequency (independent variable) on mental health (dependent variable) varies across different age groups.
17
Q
If a study aims to understand whether the impact of a leadership training program on employee productivity varies based on the size of the team, then ‘team size’ is a:
Select one:
a. Dependent variable
b. Independent variable
c. Mediating variable
d. Moderator variable
e. Confounding variable
A
Answer:
d. Moderator variable
Explanation:
‘Team size’ in this context is a moderator variable. It is used to see if the relationship between the leadership training program (independent variable) and employee productivity (dependent variable) changes when considering different team sizes.
18
Q
In research, a mediator variable is used to:
Select one:
a. Control external factors that might influence the results
b. Explain the mechanism through which an independent variable affects a dependent variable
c. Change the direction of the relationship between two variables
d. Measure the strength of the relationship between two variables
e. Determine if a variable is necessary for a relationship to exist
A
Answer:
b. Explain the mechanism through which an independent variable affects a dependent variable
Explanation:
A mediator variable explains the process or mechanism through which the independent variable is able to influence the dependent variable. It helps in understanding how or why a certain effect occurs.
19
Q
When a researcher includes gender as a variable to see if it changes the relationship between stress and job satisfaction, gender is acting as a:
Select one:
a. Dependent variable
b. Independent variable
c. Mediating variable
d. Moderator variable
e. Control variable
A
Answer:
d. Moderator variable
Explanation:
In this case, gender is a moderator variable. The researcher is using it to examine if the effect of stress (independent variable) on job satisfaction (dependent variable) varies between different genders.
20
Q
A study examines if the relationship between hours spent studying and exam scores is different for undergraduate and graduate students. Here, ‘level of education’ (undergraduate vs. graduate) is considered a:
Select one:
a. Dependent variable
b. Independent variable
c. Mediating variable
d. Moderator variable
e. Control variable
A
Answer:
d. Moderator variable
Explanation:
‘Level of education’ (undergraduate vs. graduate) is being used as a moderator variable. It is being considered to see if it influences the strength or direction of the relationship between hours spent studying (independent variable) and exam scores (dependent variable).
21
Q
In an experimental study, the threat of ‘maturation’ to internal validity occurs when:
Select one:
a. Participants drop out of the study over time.
b. The measurement instruments change over time.
c. Changes in participants occur naturally over time.
d. Participants become aware of the study’s purpose.
A
Answer:
c. Changes in participants occur naturally over time.
Explanation:
‘Maturation’ refers to the processes within participants that occur naturally over time, such as aging, healing, or changes in attitude. These natural changes can affect the results of the study and pose a threat to the internal validity by confounding the effects of the experimental manipulation.
22
Q
The ‘Hawthorne effect’ in research refers to:
Select one:
a. Changes in behavior due to participants’ awareness of being observed
b. The impact of the research environment on the study’s results
c. Biases introduced by researchers’ expectations
d. Statistical errors due to sampling methods
A
Answer:
a. Changes in behavior due to participants’ awareness of being observed
Explanation:
The ‘Hawthorne effect’ occurs when study participants change their behavior simply because they are aware that they are being observed or are part of a study, which can impact the study’s outcomes.
23
Q
‘History’ as a threat to internal validity in research refers to:
Select one:
a. The background and experiences of participants affecting study outcomes
b. Events outside the study that affect participants’ responses
c. The development of research methods over time
d. The longitudinal analysis of data
A
Answer:
b. Events outside the study that affect participants’ responses
Explanation:
‘History’ as a threat to internal validity involves external events that occur during the course of a study and might influence the participants’ responses or behaviors, independent of the experimental manipulation.
24
Q
In a study assessing the effectiveness of a new teaching method, if the pre-test influences the performance on the post-test, this is an example of a threat to validity known as:
Select one:
a. Testing effect
b. Maturation
c. Instrumentation
d. Selection bias
A
Answer:
a. Testing effect
Explanation:
The ‘testing effect’ refers to the impact that taking a pre-test can have on participants’ performance on a subsequent post-test. The experience of taking the pre-test can influence responses, learning, or familiarity, thereby affecting the results of the post-test.
25
'Selection bias' in research refers to:
Select one:
a. Choosing inappropriate measurement instruments
b. Differences in characteristics between groups in an experimental study
c. Participants self-selecting into groups
d. Researchers’ personal biases affecting the study
Answer:
b. Differences in characteristics between groups in an experimental study
Explanation:
'Selection bias' occurs when there are systematic differences in characteristics between the groups being compared in a study. This can happen due to the way participants are selected or assigned to groups, affecting the generalizability and validity of the study's conclusions.
26
A study design where participants are randomly assigned to either the treatment or control group, and the outcome is measured before and after the treatment is known as:
Select one:
a. Cross-sectional design
b. Longitudinal design
c. Pretest-posttest control group design
d. Repeated measures design
e. Cohort study
Answer:
c. Pretest-posttest control group design
Explanation:
In a pretest-posttest control group design, participants are randomly assigned to either a treatment or a control group, and the outcome of interest is measured both before (pretest) and after (posttest) the intervention in both groups. This design helps in assessing the changes attributable to the intervention.
27
When a study uses two different groups of participants, where one group receives the treatment and the other receives a placebo, this is an example of:
Select one:
a. A single-blind study
b. A double-blind study
c. A crossover study
d. A parallel-group design
e. A case-control study
Answer:
d. A parallel-group design
Explanation:
A parallel-group design involves two or more groups of participants receiving different interventions (or one receiving a placebo) concurrently. Each group is followed over the same time period, and outcomes are compared between the groups.
28
In a 'crossover study' design:
Select one:
a. Participants are observed at multiple points over time without any intervention.
b. Participants receive multiple treatments in a random order.
c. Different groups of participants receive different treatments simultaneously.
d. The same participants are studied in multiple unrelated experiments.
e. Participants are reassigned to different treatment groups midway through the study.
Answer:
b. Participants receive multiple treatments in a random order.
Explanation:
In a crossover study, participants receive multiple treatments, but in a random order. Each participant acts as their own control, as they are exposed to all treatment conditions at different times.
29
A 'longitudinal study' is characterized by:
Select one:
a. Assessing a single variable at a single point in time
b. Observing the same participants repeatedly over a long period
c. Comparing different participants at a single point in time
d. Conducting experiments at regular intervals
e. Randomly assigning participants to treatment and control groups
Answer:
b. Observing the same participants repeatedly over a long period
Explanation:
A longitudinal study involves observing the same participants multiple times over an extended period. This design is used to track changes and developments over time.
30
In a 'single-blind study':
Select one:
a. Only the participants are unaware of who is receiving the treatment or placebo.
b. Only the researchers are unaware of who is receiving the treatment or placebo.
c. Both participants and researchers are unaware of who is receiving the treatment or placebo.
d. Participants are observed without any intervention.
e. Participants are told they are receiving a treatment, but they actually receive a placebo.
Answer:
a. Only the participants are unaware of who is receiving the treatment or placebo.
Explanation:
In a single-blind study, the participants do not know whether they are receiving the actual treatment or a placebo, but the researchers do know. This helps to prevent participant expectations from influencing the results.
31
Which of the following is an example of probability sampling?
Select one:
a. Convenience sampling
b. Snowball sampling
c. Stratified random sampling
d. Purposive sampling
e. Quota sampling
Answer:
c. Stratified random sampling
Explanation:
Stratified random sampling is a type of probability sampling where the population is divided into subgroups (strata) based on shared characteristics, and random samples are then taken from each stratum. This contrasts with non-probability sampling methods like convenience, snowball, purposive, and quota sampling.
32
In qualitative research, purposive sampling is used to:
Select one:
a. Randomly select participants from a list
b. Choose participants based on specific characteristics relevant to the study
c. Include as many participants as possible for generalization
d. Allow participants to volunteer for the study
e. Sample equal numbers from different groups
Answer:
b. Choose participants based on specific characteristics relevant to the study
Explanation:
Purposive sampling in qualitative research involves selecting participants deliberately based on specific qualities or characteristics that are relevant to the research question or objective. It's a non-random and targeted approach to participant selection.
33
Snowball sampling is particularly useful when:
Select one:
a. The target population is large and diverse
b. The study requires random sampling for generalizability
c. The research focuses on a specific, difficult-to-reach population
d. High statistical precision is needed
e. A large number of participants is required quickly
Answer:
c. The research focuses on a specific, difficult-to-reach population
Explanation:
Snowball sampling is a nonprobability sampling technique used especially in qualitative research to study specific, hard-to-reach populations. In this method, existing study subjects recruit future subjects from among their acquaintances, making it easier to reach individuals who are part of a specific network or have unique characteristics.
34
Quota sampling involves:
Select one:
a. Randomly selecting participants to fill a predetermined quota
b. Selecting participants to ensure representation of various subgroups in the population
c. Allowing participants to self-select into the study
d. Repeatedly sampling from the same population over time
e. Selecting participants based on convenience
Answer:
b. Selecting participants to ensure representation of various subgroups in the population
Explanation:
Quota sampling is a nonprobability sampling method where researchers select participants in order to ensure that various subgroups of the population are represented in the sample. It involves setting quotas for different groups based on characteristics like age, sex, or ethnicity.
35
Convenience sampling is best described as:
Select one:
a. A method where participants are selected based on availability and willingness to take part
b. A random selection of participants to avoid bias
c. Sampling individuals who meet a specific set of criteria
d. Using complex statistical methods to select participants
e. Selecting a representative sample of the population
Answer:
a. A method where participants are selected based on availability and willingness to take part
Explanation:
Convenience sampling is a nonprobability sampling method where participants are chosen based on their easy availability and willingness to participate in the study, rather than using a random or systematic approach.
36
In the context of psychological testing, 'test-retest reliability' refers to:
Select one:
a. The consistency of test results when different tests are used
b. The similarity of test results when the same test is administered to the same group at different times
c. The degree to which a test measures what it claims to measure
d. The extent to which a test is unbiased and fair for all test-takers
e. The correlation between scores of different sections of the same test
Answer:
b. The similarity of test results when the same test is administered to the same group at different times
Explanation:
Test-retest reliability refers to the consistency of a test over time. It is assessed by administering the same test to the same group of individuals at two different points in time and then correlating the scores to evaluate the stability of the test.
37
'Content validity' in research methodology is determined by:
Select one:
a. Statistical analysis of the test results
b. Expert judgment on whether the test covers the relevant content area comprehensively
c. Comparing test scores with another established measure
d. Assessing the test’s reliability over multiple trials
e. Evaluating the diversity of the test items
Answer:
b. Expert judgment on whether the test covers the relevant content area comprehensively
Explanation:
Content validity is about whether a test comprehensively covers the construct or content area it is intended to measure. It is typically determined through expert judgment and review, assessing whether the test items adequately represent all aspects of the content domain.
38
Which type of validity is being assessed when a new measure is compared to an established standard or benchmark?
Select one:
a. Construct validity
b. Criterion validity
c. Face validity
d. Content validity
e. Predictive validity
Answer:
b. Criterion validity
Explanation:
Criterion validity refers to the extent to which a new measure correlates with or is able to predict an established standard or benchmark. It is about assessing how well a new test performs in relation to a well-established test or criterion.
39
'Convergent validity' is demonstrated when:
Select one:
a. A measure correlates highly with measures of unrelated constructs
b. A measure does not correlate with measures it should theoretically be unrelated to
c. A measure correlates highly with measures of similar constructs
d. The results of a measure remain consistent over time
e. A measure predicts future outcomes or behaviors
Answer:
c. A measure correlates highly with measures of similar constructs
Explanation:
Convergent validity is shown when a measure correlates well with other measures that it is theoretically supposed to be related to. It is about how closely the new measure relates to other measures of similar constructs.
40
'Discriminant validity' is best described as:
Select one:
a. The ability of a measure to differentiate between groups
b. A measure correlating poorly with measures of different constructs
c. The extent to which scores on a measure predict future performance
d. The degree to which a measure covers the breadth of the content domain
e. The consistency of a measure when administered multiple times
Answer:
b. A measure correlating poorly with measures of different constructs
Explanation:
Discriminant validity is achieved when a measure does not correlate strongly with measures from different constructs. It indicates that the measure is distinct and not simply reflecting some other variable.
41
A nominal scale in research is used for:
Select one:
a. Ranking data in order of magnitude
b. Categorizing data without implying order
c. Measuring data with equal intervals and an absolute zero
d. Measuring data with equal intervals but no true zero
e. Comparing the ratios of measurements
Answer:
b. Categorizing data without implying order
Explanation:
A nominal scale is used in research for categorizing data. It involves assigning data to categories that are mutually exclusive and collectively exhaustive, without any implication of order or rank among the categories. An example would be categorizing individuals by their hair color or by their nationality.
42
An ordinal scale is characterized by:
Select one:
a. Equal intervals between values
b. A meaningful zero point
c. The ability to rank order data
d. Precise differences between values
e. Ratios between numbers being meaningful
Answer:
c. The ability to rank order data
Explanation:
An ordinal scale allows for the ranking or ordering of data based on some attribute or characteristic. However, the intervals between the ranks are not necessarily equal, and the scale does not indicate the magnitude of differences between ranks. An example is a satisfaction rating scale (e.g., satisfied, neutral, dissatisfied).
43
A ratio scale is distinct from other scales because it:
Select one:
a. Only categorizes data
b. Has an absolute zero point
c. Does not allow for the ranking of data
d. Measures only the frequency of occurrences
e. Is used only for qualitative data
Answer:
b. Has an absolute zero point
Explanation:
A ratio scale is unique among scales because it has an absolute zero point, meaning that zero indicates the absence of the variable being measured. Additionally, ratio scales have equal intervals, allowing for the comparison of ratios. An example would be weight or height measurements.
44
When a survey asks respondents to rate their satisfaction on a scale from 1 to 5, this type of scale is known as:
Select one:
a. Nominal scale
b. Ordinal scale
c. Interval scale
d. Ratio scale
e. Categorical scale
Answer:
c. Interval scale
Explanation:
A scale that asks respondents to rate their satisfaction on a scale from 1 to 5 is an interval scale. It provides equal intervals between points on the scale (e.g., the difference between 1 and 2 is the same as between 4 and 5), but it does not have a true zero point (i.e., a rating of 0 does not mean 'no satisfaction').
45
In market research, using a scale where consumers rate a product as 'excellent,' 'good,' 'fair,' or 'poor' is an example of a:
Select one:
a. Nominal scale
b. Ordinal scale
c. Interval scale
d. Ratio scale
e. Continuous scale
Answer:
b. Ordinal scale
Explanation:
This type of scale is an ordinal scale, as it allows consumers to rank their perception of the product in a specific order. The categories imply a ranking (from excellent to poor), but the exact differences between these ranks are not defined.
46
Validity in the context of a research instrument means:
Select one:
a. The instrument consistently produces the same results.
b. The instrument measures what it is intended to measure.
c. The results of the instrument are reproducible by other researchers.
d. The instrument is easy to use and interpret.
e. The instrument can be used in a variety of settings.
Answer:
b. The instrument measures what it is intended to measure.
Explanation:
Validity refers to the degree to which a research instrument accurately measures what it is intended to measure. A valid instrument accurately reflects the concept or variable it is designed to assess.
47
Which of the following best describes 'face validity'?
Select one:
a. The extent to which a test appears effective in terms of its stated aims
b. The correlation of the measure with a criterion variable taken at the same time
c. The consistency of the measure across different items
d. The ability of the measure to predict a future outcome
e. The similarity of the measure to other measures that it theoretically should correlate with
Answer:
a. The extent to which a test appears effective in terms of its stated aims
Explanation:
Face validity refers to the extent to which a test or instrument appears effective and suitable for its intended purpose, based on superficial characteristics. It is about whether the test seems valid to those who are using it or participating in it.
48
'Construct validity' is demonstrated when:
Select one:
a. The measurement correlates with other measures of the same construct.
b. The measurement accurately predicts future behavior or outcomes.
c. The questions in the measurement tool look right to untrained individuals.
d. The measurement gives consistent results over time.
e. Different methods of measurement provide the same results.
Answer:
a. The measurement correlates with other measures of the same construct.
Explanation:
Construct validity is shown when a measurement correlates well with other measures that are theoretically expected to be related to the same construct. It is about how well the instrument measures the theoretical construct it is supposed to measure.
49
Predictive validity of a test is determined by:
Select one:
a. Checking the test’s consistency over time.
b. Comparing the test results to a criterion measured at the same time.
c. Assessing how well the test predicts future outcomes or behaviors.
d. Evaluating whether the test covers all aspects of the construct.
e. Ensuring the test does not correlate with unrelated measures.
Answer:
c. Assessing how well the test predicts future outcomes or behaviors.
Explanation:
Predictive validity is determined by assessing how well a test or measurement can predict future outcomes or behaviors. It involves correlating test scores with outcomes that are measured at a later point in time.
50
In research, 'inter-rater reliability' refers to:
Select one:
a. The consistency of a measure when different people use it.
b. The consistency of a measure when used by the same person over time.
c. The similarity of a measure to other measures that assess the same construct.
d. The ability of a measure to produce the same results under unchanged conditions.
e. The degree to which a measure covers the range of meanings included within a concept.
Answer:
a. The consistency of a measure when different people use it.
Explanation:
Inter-rater reliability refers to the extent to which different raters or observers give consistent estimates or ratings when assessing the same phenomenon. It is a measure of reliability used to assess the degree to which different judges or assessors agree in their assessment decisions.
51
Stratified random sampling is a technique where:
Select one:
a. The population is divided into subgroups and random samples are taken from each subgroup.
b. Every member of the population has an equal chance of being selected.
c. A sample is selected based on convenience or accessibility.
d. Participants are selected based on certain predetermined characteristics.
e. A primary sample is used for general information and a subsample for detailed study.
Answer:
a. The population is divided into subgroups and random samples are taken from each subgroup.
Explanation:
In stratified random sampling, the population is divided into strata or subgroups that share similar characteristics, and then random samples are drawn from each of these strata. This method ensures representation from each subgroup and can increase the statistical efficiency of the research.
52
Cluster sampling is most suitable when:
Select one:
a. The population is homogeneous.
b. The population is spread over a large geographic area.
c. Detailed information is needed from each individual in the population.
d. Only a small subset of the population is relevant to the study.
e. The population is small and easily accessible.
Answer:
b. The population is spread over a large geographic area.
Explanation:
Cluster sampling is particularly suitable for populations that are spread over a large geographic area. In this method, the population is divided into clusters (like geographic areas), and a random sample of these clusters is selected for study, making data collection more practical and cost-effective.
53
Systematic sampling involves:
Select one:
a. Selecting every nth member of the population.
b. Choosing individuals based on their availability.
c. Randomly selecting a starting point and then choosing every member.
d. Dividing the population into groups and selecting entire groups randomly.
e. Repeating the sampling process with different subgroups.
Answer:
a. Selecting every nth member of the population.
Explanation:
In systematic sampling, a sample is drawn by selecting every nth member of the population after a random start. This method is a type of probability sampling and is often used when a complete list of the population is available.
54
Purposive sampling is characterized by:
Select one:
a. Selection based on the judgment of the researcher.
b. Random selection from the population.
c. Choosing participants who volunteer for the study.
d. Using a computer algorithm to select the sample.
e. Repeated sampling from the same population group.
Answer:
a. Selection based on the judgment of the researcher.
Explanation:
Purposive sampling, also known as judgmental sampling, involves selecting participants based on the researcher's knowledge and judgment about who will be most informative for the purpose of the study. It's a non-random technique used especially in qualitative research.
55
Random sampling is essential for research studies because it:
Select one:
a. Guarantees that the sample will accurately represent the population.
b. Ensures that each member of the population has an equal chance of being included.
c. Allows for convenience and ease in selecting participants.
d. Focuses on specific characteristics of the population.
e. Requires less time and resources compared to other sampling methods.
Answer:
b. Ensures that each member of the population has an equal chance of being included.
Explanation:
Random sampling is important because it ensures that each member of the population has an equal probability of being included in the sample. This method is used to obtain a representative sample and to reduce sampling bias, thereby enhancing the generalizability of the study results.
56
Snowball sampling is particularly useful in studies where:
Select one:
a. The population is large and easily identifiable.
b. The study requires random sampling for generalization.
c. The population is small and specific, such as a rare medical condition.
d. Large data sets are needed for statistical significance.
e. The population is homogeneous and widespread.
Answer:
c. The population is small and specific, such as a rare medical condition.
Explanation:
Snowball sampling is useful in studies where the population is small, specific, or hard to reach. It involves existing study subjects recruiting future subjects from their acquaintances, making it easier to reach these specific populations.
57
A researcher interested in studying attitudes towards a new policy selects participants based on their availability outside a public library. This is an example of:
Select one:
a. Random sampling
b. Stratified sampling
c. Systematic sampling
d. Convenience sampling
e. Cluster sampling
Answer:
d. Convenience sampling
Explanation:
This scenario describes convenience sampling. It involves selecting participants based on their availability and ease of access, rather than using a random or systematic approach.
58
In research, 'quota sampling' involves:
Select one:
a. Randomly selecting participants from different strata.
b. Selecting a convenient sample until a certain number is reached.
c. Choosing participants to ensure representation of different subgroups.
d. Sampling an equal number from identified population clusters.
e. Allowing participants to self-select into the study.
Answer:
c. Choosing participants to ensure representation of different subgroups.
Explanation:
Quota sampling involves selecting participants in a way that ensures representation of various subgroups or segments of the population. It’s a non-random method where the researcher sets quotas for these subgroups to ensure their presence in the sample.
59
When a study involves selecting a fixed number of participants from each of several different groups based on some known characteristic, like age or income, this is known as:
Select one:
a. Random sampling
b. Stratified random sampling
c. Snowball sampling
d. Quota sampling
e. Convenience sampling
Answer:
b. Stratified random sampling
Explanation:
Stratified random sampling involves dividing the population into strata, or subgroups, based on a known characteristic and then randomly selecting a fixed number of participants from each stratum. This method ensures representation from each subgroup.
60
61
In a research design notation, 'R' typically stands for:
Select one:
a. Randomization
b. Replication
c. Regression
d. Response
e. Result
Answer:
a. Randomization
Explanation:
In research design notation, 'R' stands for randomization. This indicates that participants in the study were randomly assigned to either the experimental or control groups, which is a key feature of experimental research designs to ensure that the groups are comparable and to control for biases.
62
A research design notated as 'R O X O' represents which of the following setups?
Select one:
a. A pretest-posttest control group design
b. A posttest-only control group design
c. A repeated measures design
d. A longitudinal study
e. A cross-sectional study
Answer:
a. A pretest-posttest control group design
Explanation:
'R O X O' represents a pretest-posttest control group design. Here, 'R' indicates random assignment, 'O' represents observation or measurement (pretest), 'X' is the intervention or treatment, and the second 'O' is the posttest measurement.
63
What does the notation 'X O' represent in research design?
Select one:
a. A control group that receives a treatment
b. An experimental group without a pretest
c. A longitudinal study with multiple observations
d. A study with a pretest and no posttest
e. A repeated measures design
Answer:
b. An experimental group without a pretest
Explanation:
The notation 'X O' represents a simple experimental design where a group receives an intervention or treatment ('X') followed by an observation or measurement ('O'), without a pretest. This is often used in posttest-only experimental designs.
64
In an experimental research design, the notation 'O X O' typically indicates:
Select one:
a. A control group design
b. A pretest-posttest design without randomization
c. A posttest-only design
d. A longitudinal design
e. A cross-sectional design
Answer:
b. A pretest-posttest design without randomization
Explanation:
'O X O' indicates a pretest-posttest design where there is an initial observation or measurement ('O'), an intervention or treatment ('X'), followed by a posttest observation or measurement ('O'). This notation lacks the 'R' for randomization, suggesting that the participants are not randomly assigned to groups.
65
The research design 'R O X O' vs. 'R O O' is an example of:
Select one:
a. A single-group pretest-posttest design
b. A randomized controlled trial
c. A cross-sectional study
d. A quasi-experimental design
e. A longitudinal study
Answer:
b. A randomized controlled trial
Explanation:
The notation 'R O X O' vs. 'R O O' represents a randomized controlled trial. In this design, participants are randomly assigned ('R') to either an experimental group that receives a treatment ('X') or a control group that does not receive the treatment. Both groups are measured before ('O') and after ('O') the intervention.
66
A 'cross-sectional study' design typically involves:
Select one:
a. Observing or measuring participants at multiple points over time.
b. Comparing different groups of participants at a single point in time.
c. Randomly assigning participants to experimental and control groups.
d. Repeating the same study with different samples.
e. Conducting in-depth case studies of individual participants.
Answer:
b. Comparing different groups of participants at a single point in time.
Explanation:
A cross-sectional study involves observing or measuring different groups of participants at a single point in time. It is often used to assess the prevalence of a trait or characteristic in a population at a specific moment.
67
In a 'longitudinal study' design, researchers:
Select one:
a. Compare participants in different locations.
b. Focus on a single case or instance in great detail.
c. Observe or measure the same participants repeatedly over a period of time.
d. Randomize participants into different treatment groups.
e. Conduct a study at a single point in time with multiple variables.
Answer:
c. Observe or measure the same participants repeatedly over a period of time.
Explanation:
Longitudinal studies involve tracking the same participants and observing or measuring them multiple times over an extended period. This design allows researchers to see how individuals change over time and to examine the causes and effects of these changes.
68
A study design that includes both experimental and control groups, but does not use random assignment, is known as a:
Select one:
a. Randomized controlled trial.
b. Quasi-experimental design.
c. Cross-sectional study.
d. Cohort study.
e. Case-control study.
Answer:
b. Quasi-experimental design.
Explanation:
A quasi-experimental design includes both experimental and control groups but lacks random assignment to these groups. This can occur in situations where randomization is not feasible or ethical. It is less rigorous than a randomized controlled trial in establishing causal relationships.
69
The research design notation 'O1 X O2' indicates which type of study?
Select one:
a. A posttest-only control group design.
b. A pretest-posttest single-group design.
c. A randomized controlled trial.
d. A longitudinal study with multiple cohorts.
e. A cross-sectional study with two variables.
Answer:
b. A pretest-posttest single-group design.
Explanation:
'O1 X O2' indicates a pretest-posttest single-group design. 'O1' refers to the observation or measurement before the intervention ('X'), and 'O2' refers to the observation or measurement after the intervention. This design allows for comparison within the same group before and after the intervention but lacks a control group.
70
A 'case-control study' is typically used in:
Select one:
a. Evaluating the effectiveness of a new treatment or intervention.
b. Understanding the relationship between a risk factor and an outcome.
c. Studying changes in a population over time.
d. Testing hypotheses in a laboratory setting.
e. Assessing the prevalence of a characteristic in a population.
Answer:
b. Understanding the relationship between a risk factor and an outcome.
Explanation:
A case-control study is often used in epidemiological research to understand the relationship between a risk factor (e.g., exposure to a substance) and an outcome (e.g., development of a disease). It involves comparing individuals with the condition (cases) to those without the condition (controls) to see if there are differences in exposure to the risk factor.
71
A Likert scale in a survey typically:
Select one:
a. Provides only two options for response (e.g., Yes or No).
b. Includes a neutral or middle option for respondents.
c. Requires respondents to rank order their responses.
d. Is used for open-ended qualitative responses.
e. Measures the intensity of a respondent's feelings on a binary scale.
Answer:
b. Includes a neutral or middle option for respondents.
Explanation:
A Likert scale is a type of rating scale commonly used in surveys, which often includes a neutral or middle option. It allows respondents to express the degree of their agreement or disagreement on a symmetrical agree-disagree scale.
72
In survey design, 'forced choice' questions are those that:
Select one:
a. Require respondents to choose between two polar opposite options.
b. Allow respondents to select multiple answers.
c. Provide a neutral option for respondents to choose.
d. Force respondents to answer the question before proceeding.
e. Are mandatory for completing the survey.
Answer:
a. Require respondents to choose between two polar opposite options.
Explanation:
Forced choice questions in surveys require respondents to choose between two polar opposite options, without the possibility of selecting a neutral or middle ground. This format forces a clear choice on each question.
73
When a survey question allows respondents to select 'Neither agree nor disagree' as an option, this type of question is known as:
Select one:
a. A bipolar question.
b. A unipolar question.
c. An open-ended question.
d. A forced-choice question.
e. An unforced-choice question.
Answer:
e. An unforced-choice question.
Explanation:
When a survey includes options like 'Neither agree nor disagree,' it is using an unforced-choice format. This allows respondents to express a neutral stance if they do not have a strong opinion or preference.
74
A balanced scale in survey research is one that:
Select one:
a. Has an equal number of positive and negative response options.
b. Always includes a neutral or middle option.
c. Is used for measuring both qualitative and quantitative data.
d. Requires respondents to balance their positive and negative responses.
e. Is designed to weigh responses equally for statistical analysis.
Answer:
a. Has an equal number of positive and negative response options.
Explanation:
A balanced scale in survey research typically includes an equal number of positive and negative response options, allowing for a symmetrical range of responses.
75
In a survey, an 'unbalanced scale' is one that:
Select one:
a. Includes more positive (or negative) response options than its opposite.
b. Lacks a neutral point.
c. Only allows for extreme responses.
d. Is skewed towards one end of the response spectrum.
e. Measures only one aspect of a respondent's opinion.
Answer:
a. Includes more positive (or negative) response options than its opposite.
Explanation:
An unbalanced scale in a survey is characterized by having more options on one side (either positive or negative) than the other. This can lead to a skew in the responses toward the side with more options.
76
A semantic differential scale in a survey typically consists of:
Select one:
a. A series of statements rated on a Likert scale.
b. Pairs of opposite adjectives at each end of a scale.
c. A list of items to be ranked in order of preference.
d. Binary choices for each question.
e. A set of images to choose from based on respondent feelings.
Answer:
b. Pairs of opposite adjectives at each end of a scale.
Explanation:
A semantic differential scale is used in surveys to measure attitudes and involves a series of bipolar adjectives (e.g., happy-sad, effective-ineffective) at each end of a scale. Respondents indicate their feelings or attitudes on a continuum between these two opposites.
77
When a survey uses a 5-point scale where 1 means 'Strongly Disagree' and 5 means 'Strongly Agree,' this is an example of:
Select one:
a. A semantic differential scale.
b. A Likert scale.
c. A Thurstone scale.
d. A Guttman scale.
e. A differential item functioning scale.
Answer:
b. A Likert scale.
Explanation:
This is an example of a Likert scale, a common method in surveys for measuring attitudes or opinions. The 5-point scale from 'Strongly Disagree' to 'Strongly Agree' allows respondents to indicate their level of agreement with a statement.
78
A Guttman scale in survey research is designed to:
Select one:
a. Measure the intensity of a respondent's feelings on a continuum.
b. Arrange items in a hierarchical order based on respondent agreement.
c. Present bipolar adjectives for attitude measurement.
d. Force a choice between two polar opposite options.
e. Create a balance between positive and negative response options.
Answer:
b. Arrange items in a hierarchical order based on respondent agreement.
Explanation:
A Guttman scale is designed to arrange items in a hierarchical order. Respondents who agree with items higher up in the hierarchy are assumed to agree with all items lower down. It is used to measure the intensity of attitudes or opinions.
79
When a survey question asks respondents to rate their satisfaction on a scale from 'Extremely Unsatisfied' to 'Extremely Satisfied' without a neutral option, this type of scale is known as:
Select one:
a. A balanced scale.
b. An unbalanced scale.
c. A forced-choice scale.
d. An unforced-choice scale.
e. A semantic differential scale.
Answer:
c. A forced-choice scale.
Explanation:
Without a neutral or middle option, this type of scale is considered a forced-choice scale. Respondents are compelled to lean towards either a positive or negative response, indicating some level of satisfaction or dissatisfaction.
80
In survey research, 'response bias' is a concern because it:
Select one:
a. Indicates a lack of random sampling.
b. Reflects a problem with the survey's distribution method.
c. May produce results that are not truly representative of the respondent's feelings or opinions.
d. Is a result of using too many open-ended questions.
e. Occurs only in longitudinal studies.
Answer:
c. May produce results that are not truly representative of the respondent's feelings or opinions.
Explanation:
Response bias occurs when respondents answer questions in a manner that does not reflect their true feelings or opinions, often due to the wording of questions, social desirability, or other factors. This can lead to results that are skewed or not representative of the actual attitudes or opinions of the respondents.
81
Coefficient alpha (often referred to as Cronbach's alpha) is most relevant in assessing the reliability of:
Select one:
a. The consistency between different raters.
b. The stability of test results over time.
c. The internal consistency of a test with multiple items.
d. The agreement between a test and an established criterion.
e. The differentiation between distinct but related constructs.
Answer:
c. The internal consistency of a test with multiple items.
Explanation:
Coefficient alpha, or Cronbach's alpha, is a measure of internal consistency reliability. It assesses how closely related a set of items are as a group and is commonly used to evaluate the reliability of scales or tests that consist of multiple items or questions.
82
Test-retest reliability is important in a measurement tool when the researcher needs to:
Select one:
a. Ensure the tool yields similar results when used by different observers.
b. Confirm that the tool measures what it is supposed to measure.
c. Verify that the tool produces consistent results over time.
d. Determine if the tool is appropriate for different demographic groups.
e. Assess the tool's ability to measure changes after an intervention.
Answer:
c. Verify that the tool produces consistent results over time.
Explanation:
Test-retest reliability refers to the stability of a measurement tool over time. It is assessed by administering the same test to the same subjects at two different times and comparing the scores. This type of reliability is important when researchers need to ensure that the measurement tool yields consistent results across time intervals.
83
In a research study, discriminant validity is demonstrated when:
Select one:
a. A measurement tool consistently yields similar results under unchanged conditions.
b. Different observers give similar scores using the measurement tool.
c. The measurement tool shows low correlation with unrelated constructs.
d. The measurement tool has a high correlation with an established criterion.
e. The items within the measurement tool are highly correlated with each other.
Answer:
c. The measurement tool shows low correlation with unrelated constructs.
Explanation:
Discriminant validity is demonstrated when a measurement tool shows little to no correlation with variables or constructs that are theoretically unrelated. It is a way to show that the tool is specific and not merely measuring something else.
84
When a researcher is concerned with 'inter-rater reliability,' they are focusing on:
Select one:
a. The similarity of scores given by different raters using the same measurement tool.
b. The consistency of a measurement tool over repeated administrations.
c. The correlation of the measurement tool with an external criterion.
d. The internal consistency of a test composed of multiple items.
e. The agreement of a test with theoretical expectations.
Answer:
a. The similarity of scores given by different raters using the same measurement tool.
Explanation:
Inter-rater reliability concerns the degree to which different raters or observers give consistent estimates or ratings when assessing the same phenomenon. This type of reliability is crucial in research settings where subjective judgments or evaluations are involved.
85
Stapel scale reliability would be most pertinent in assessing:
Select one:
a. The agreement among different judges in a subjective scoring system.
b. The internal consistency of a unipolar rating scale.
c. The test-retest stability of a survey instrument.
d. The correlation of scale items with an overall score.
e. The differentiation of items measuring opposite ends of a single dimension.
Answer:
b. The internal consistency of a unipolar rating scale.
Explanation:
A Stapel scale is a type of unipolar rating scale used in surveys. Assessing the reliability of a Stapel scale would involve examining its internal consistency, ensuring that the scale items consistently measure the same underlying construct.
86
Face validity in a survey or test refers to:
Select one:
a. The degree to which the items on the test appear to be meaningful and relevant to respondents.
b. The extent to which the test correlates with a previously validated measure.
c. The reliability of the test over repeated administrations.
d. The accuracy of the test in predicting future performance or behavior.
e. The degree to which the test measures an underlying theoretical construct.
Answer:
a. The degree to which the items on the test appear to be meaningful and relevant to respondents.
Explanation:
Face validity relates to the superficial appearance of a test or survey, specifically whether it seems to measure what it is supposed to measure in the eyes of the respondents or other non-experts. It's about the perceived relevance and appropriateness of the test content.
87
When measuring the correlation between two variables, if the results are consistent regardless of the method or instrument used, this indicates high:
Select one:
a. Concurrent validity.
b. Construct validity.
c. Criterion-related validity.
d. Inter-method reliability.
e. Test-retest reliability.
Answer:
d. Inter-method reliability.
Explanation:
Inter-method reliability refers to the degree to which different methods or instruments yield consistent results when measuring the same variables. High inter-method reliability suggests that the measurement of the variable is reliable across different approaches.
88
In research, 'criterion-related validity' is established by:
Select one:
a. Demonstrating that a test aligns well with a relevant criterion measured at the same time (concurrent) or in the future (predictive).
b. Showing that the test has a low correlation with measures from different constructs.
c. Ensuring that the test items are internally consistent.
d. Proving that the test results remain stable over time.
e. Confirming that experts agree on the content of the test.
Answer:
a. Demonstrating that a test aligns well with a relevant criterion measured at the same time (concurrent) or in the future (predictive).
Explanation:
Criterion-related validity is about how well a test corresponds with a particular criterion. It can be concurrent, where the test is compared with a criterion measured at the same time, or predictive, where the test predicts future outcomes or behaviors related to the criterion.
89
If a psychological test is administered to the same group on two different occasions and the scores are highly similar, this test is said to have high:
Select one:
a. Construct validity.
b. Criterion-related validity.
c. Test-retest reliability.
d. Inter-rater reliability.
e. Face validity.
Answer:
c. Test-retest reliability.
Explanation:
Test-retest reliability refers to the stability of a test over time. If a psychological test yields highly similar scores when administered to the same group on two different occasions, it indicates that the test has high test-retest reliability.
90
Predictive validity of a measure is determined by:
Select one:
a. The consistency of the measure across different contexts.
b. The ability of the measure to predict future outcomes or behaviors.
c. The measure's alignment with the theoretical construct it purports to measure.
d. The uniformity of ratings given by different observers using the measure.
e. The measure’s appearance of validity to those who are taking it.
Answer:
b. The ability of the measure to predict future outcomes or behaviors.
Explanation:
Predictive validity refers to the extent to which a measure can accurately predict future outcomes or behaviors. It involves assessing whether the current measure is a good predictor of a future state or behavior.
91
External validity is primarily concerned with:
Select one:
a. The consistency of a test result over time.
b. The extent to which findings can be generalized beyond the study sample.
c. The accuracy of measuring the intended variable.
d. The agreement among different observers or raters.
e. The stability of experimental manipulations.
Answer:
b. The extent to which findings can be generalized beyond the study sample.
Explanation:
External validity refers to the extent to which the results of a study can be generalized or applied to contexts outside the original research setting, including different populations, locations, and conditions. It's about the applicability of the findings beyond the specific circumstances of the study.
92
Internal validity in a research study is primarily concerned with:
Select one:
a. How well the study can be replicated by other researchers.
b. The accuracy with which the study measures what it intends to measure.
c. The degree to which the results of the study can be generalized to other populations.
d. Ensuring the study's findings are solely due to the manipulation of the independent variable.
e. The consistency of the measurement across different instruments.
Answer:
d. Ensuring the study's findings are solely due to the manipulation of the independent variable.
Explanation:
Internal validity is concerned with the extent to which a study can confidently establish a causal relationship between the independent and dependent variables, free from the influence of confounding variables. It's about the study's ability to demonstrate that changes in the dependent variable are directly caused by the manipulation of the independent variable.
93
The main goal of a pilot study is to:
Select one:
a. Obtain preliminary data for a larger study.
b. Test the study's hypotheses in a smaller sample.
c. Assess the feasibility and design of the main study.
d. Increase the external validity of the research.
e. Conduct an in-depth analysis of a single case.
Answer:
c. Assess the feasibility and design of the main study.
Explanation:
The primary purpose of a pilot study is to assess the feasibility of the procedures and design of the main study. It allows researchers to identify and address potential issues in study protocols, instruments, and methodologies before conducting the full-scale research.
94
A research study's findings have high ecological validity when:
Select one:
a. The study accurately reflects real-world conditions.
b. The study can be generalized to other settings and populations.
c. The measurements used in the study are highly reliable.
d. The study's design controls for all possible confounding variables.
e. The results are consistent with the theoretical framework of the study.
Answer:
a. The study accurately reflects real-world conditions.
Explanation:
Ecological validity refers to the extent to which a study's findings are applicable to real-world conditions. High ecological validity means the study realistically represents and can be applied to everyday life situations outside the research setting.
95
Random assignment in an experimental study is important because it:
Select one:
a. Ensures the internal validity of the study.
b. Guarantees that the study findings can be generalized.
c. Eliminates the need for a control group.
d. Enhances the ecological validity of the study.
e. Automatically controls for all extraneous variables.
Answer:
a. Ensures the internal validity of the study.
Explanation:
Random assignment is crucial in experimental research as it helps ensure internal validity. By randomly assigning participants to treatment or control groups, it minimizes the risk of systematic bias and ensures that groups are comparable at the start of the experiment. This process helps in establishing a causal relationship between the independent and dependent variables.
96
In hypothesis testing, statistical power refers to:
Select one:
a. The probability of correctly rejecting a false null hypothesis.
b. The likelihood of accepting a true null hypothesis.
c. The precision of the estimated effect size.
d. The confidence level used in the hypothesis test.
e. The ability to generalize findings to the larger population.
Answer:
a. The probability of correctly rejecting a false null hypothesis.
Explanation:
Statistical power in hypothesis testing is the probability that the test will correctly reject a false null hypothesis. It reflects the test's ability to detect an effect when there is one. High statistical power means a lower risk of making a Type II error (failing to reject a false null hypothesis).
97
The 'confidence level' in a statistical analysis primarily indicates:
Select one:
a. The probability of the sample accurately representing the population.
b. The likelihood of the results being due to chance.
c. The precision of the estimated effect size.
d. The degree of certainty in rejecting the null hypothesis.
e. The robustness of the research design.
Answer:
a. The probability of the sample accurately representing the population.
Explanation:
The confidence level in statistical analysis refers to the degree of certainty or probability that the sample results accurately represent the population. Commonly used confidence levels include 95% and 99%, indicating that if the study were repeated numerous times, 95% or 99% of the time, the results would fall within the confidence interval.
98
The concept of 'theoretical saturation' in qualitative research refers to:
Select one:
a. The point at which additional data does not provide any new insights.
b. The maximum sample size achievable.
c. The level of detail in the data analysis.
d. The extent to which theories can be generated from the data.
e. The completeness of the theoretical framework used in the study.
Answer:
a. The point at which additional data does not provide any new insights.
Explanation:
Theoretical saturation in qualitative research is reached when additional data collection and analysis no longer yield new insights or information related to the research question. It is a key concept in determining when data collection can be concluded in qualitative studies.
99
In research, 'precision' commonly refers to:
Select one:
a. The accuracy of the results in relation to the true values.
b. The consistency of repeated measurements or observations.
c. The likelihood that a study's results can be replicated.
d. The level of detail in the measurement of variables.
e. The narrowness of the confidence interval.
Answer:
e. The narrowness of the confidence interval.
Explanation:
In research, precision often refers to the narrowness of the confidence interval around an estimate. A narrower confidence interval indicates a more precise estimate of the population parameter. Precision is related to the variability of the data and the size of the sample.
100
Effect size in statistical analysis is important because it:
Select one:
a. Determines the validity of the research findings.
b. Indicates the practical significance of the research results.
c. Is the only measure necessary for hypothesis testing.
d. Measures the reliability of the study.
e. Is synonymous with the p-value.
Answer:
b. Indicates the practical significance of the research results.
Explanation:
Effect size in statistical analysis indicates the practical significance or magnitude of the research results. Unlike the p-value, which tells you whether an effect exists, the effect size tells you how large that effect is. Understanding the effect size helps in determining the real-world relevance of the study findings.
101
A cross-sectional study design is characterized by:
Select one:
a. Collecting data from the same subjects repeatedly over a long period.
b. Observing or measuring different subjects at multiple points in time.
c. Collecting data from different subjects at a single point in time.
d. Repeating the study with different samples to confirm the findings.
e. Focusing on a single case or instance in great detail.
Answer:
c. Collecting data from different subjects at a single point in time.
Explanation:
A cross-sectional study involves observing or measuring different subjects at one specific point in time. This type of study is often used to assess the prevalence or characteristics of a condition or phenomenon at a particular moment.
102
Repeated measures design in research refers to a study in which:
Select one:
a. The same measures are used on different samples at different times.
b. Different measures are used on the same sample at different times.
c. The same measures are used on the same sample at different times.
d. The study is repeated in different settings to test for consistency.
e. Multiple variables are measured at the same time.
Answer:
c. The same measures are used on the same sample at different times.
Explanation:
A repeated measures design involves using the same measures on the same group of subjects at different points in time. This design allows the researcher to observe changes over time within the same subjects.
103
In research, 'cohort studies' typically involve:
Select one:
a. Studying a specific population group over a long period.
b. Comparing different population groups at a single point in time.
c. Repeated cross-sectional studies of different samples.
d. Randomized control trials with large sample sizes.
e. Case studies focusing on individual or small group experiences.
Answer:
a. Studying a specific population group over a long period.
Explanation:
Cohort studies involve following a specific population group, or cohort, over an extended period. These studies track changes and developments within the cohort to assess how different factors affect outcomes over time.
104
A case-control study is particularly useful for:
Select one:
a. Determining the prevalence of a characteristic or condition.
b. Studying rare conditions or diseases.
c. Examining changes within a population over time.
d. Testing the effectiveness of a new intervention.
e. Assessing the immediate impact of an event.
Answer:
b. Studying rare conditions or diseases.
Explanation:
Case-control studies are especially useful for studying rare conditions or diseases. In these studies, individuals with the condition (cases) are compared to those without the condition (controls) to identify potential causes or risk factors.
105
In experimental research, a control group is used to:
Select one:
a. Ensure that the experiment can be replicated.
b. Provide a comparison against the group receiving the intervention.
c. Represent the general population.
d. Test multiple hypotheses simultaneously.
e. Increase the statistical power of the study.
Answer:
b. Provide a comparison against the group receiving the intervention.
Explanation:
In experimental research, a control group is used as a baseline to provide a comparison against the experimental group, which receives the intervention or treatment. The control group helps in understanding the effect of the intervention by comparing outcomes between the groups.
106
Content analysis in research is primarily used for:
Select one:
a. Systematically analyzing and interpreting messages in texts, media, or documents.
b. Experimentally manipulating variables in a controlled setting.
c. Participating in and observing a group to understand its culture.
d. Conducting surveys and questionnaires to collect large amounts of data.
e. Comparing different population groups at a single point in time.
Answer:
a. Systematically analyzing and interpreting messages in texts, media, or documents.
Explanation:
Content analysis is a research method used for systematically analyzing and interpreting the content of communication materials such as texts, media, and documents. It involves coding and categorizing qualitative data to understand themes and patterns.
107
Action research is characterized by:
Select one:
a. Researchers passively observing without getting involved.
b. A focus on historical and archival data.
c. Researchers actively participating and influencing the environment being studied.
d. Randomized controlled trials in laboratory settings.
e. Longitudinal studies tracking changes over time.
Answer:
c. Researchers actively participating and influencing the environment being studied.
Explanation:
Action research is a participatory form of research where the researcher actively engages with and often influences the environment being studied. It involves a cyclic process of planning, acting, observing, and reflecting, with the aim of solving a problem or improving a situation.
108
Quasi-experimental research design is typically used when:
Select one:
a. The researcher is able to manipulate the independent variable but cannot use random assignment.
b. Only qualitative data is collected and analyzed.
c. The study involves in-depth analysis of a single case or event.
d. The researcher is conducting large-scale surveys.
e. The study design includes a pretest and posttest for all participants.
Answer:
a. The researcher is able to manipulate the independent variable but cannot use random assignment.
Explanation:
Quasi-experimental research designs are used when the researcher can manipulate the independent variable but cannot randomly assign participants to groups. This type of design is common in situations where random assignment is not feasible or ethical.
109
In research, intensive lab research typically involves:
Select one:
a. Detailed, focused study within a controlled laboratory environment.
b. Broad, large-scale observational studies.
c. Participatory methods with researcher immersion in the field.
d. Analysis of historical or archival materials.
e. Surveys and questionnaires administered in a lab setting.
Answer:
a. Detailed, focused study within a controlled laboratory environment.
Explanation:
Intensive lab research typically involves conducting detailed and focused studies within a controlled laboratory environment. This type of research is common in the natural and physical sciences, where precise control over experimental conditions is required.
110
The primary goal of ethnographic research is to:
Select one:
a. Test specific hypotheses in a controlled environment.
b. Analyze the content of communication in media and documents.
c. Understand the culture and practices of a group through immersive observation.
d. Conduct experiments with random assignment of subjects.
e. Collect quantitative data through surveys and questionnaires.
Answer:
c. Understand the culture and practices of a group through immersive observation.
Explanation:
Ethnographic research aims to understand the culture, practices, and experiences of a group through immersive observation and participation. This approach is common in anthropology and sociology and involves deep engagement with the group being studied.
111
Simple random sampling is a method where:
Select one:
a. Each member of the population has an equal probability of being selected.
b. Participants are selected based on certain characteristics.
c. A list of the population is divided into segments, and samples are taken from each segment.
d. Samples are selected based on convenience or accessibility.
e. Participants are chosen based on their response to a previous survey.
Answer:
a. Each member of the population has an equal probability of being selected.
Explanation:
Simple random sampling is a basic type of probability sampling method where every member of the population has an equal chance of being selected. This method ensures that the sample is unbiased and representative of the population.
112
Quota sampling in research involves:
Select one:
a. Randomly selecting participants from a list.
b. Choosing participants based on specific quotas to ensure representation.
c. Using the first available participants until the quota is met.
d. Dividing the population into groups and randomly selecting from each group.
e. Selecting participants who volunteer for the study.
Answer:
b. Choosing participants based on specific quotas to ensure representation.
Explanation:
Quota sampling is a non-probability sampling method where the researcher sets quotas for different groups or characteristics to ensure representation of these groups in the sample. It involves choosing participants to meet these pre-set quotas.
113
Systematic sampling is most appropriate when:
Select one:
a. The population list is randomly ordered.
b. The population is divided into strata or subgroups.
c. Only a convenience sample can be obtained.
d. Detailed information is needed from a specific subgroup.
e. The population has a known and meaningful order.
Answer:
a. The population list is randomly ordered.
Explanation:
Systematic sampling works best when the population list is randomly ordered, which minimizes the risk of introducing a pattern-based bias. In this method, a fixed interval is used to select members from the list, starting with a randomly chosen individual.
114
In research, disproportionate stratified random sampling is used when:
Select one:
a. The researcher wants to ensure representation from all subgroups.
b. Certain subgroups in the population are overrepresented.
c. The population is homogenous.
d. There is no need for representation of all subgroups.
e. The population size is small.
Answer:
b. Certain subgroups in the population are overrepresented.
Explanation:
Disproportionate stratified random sampling is used when the researcher wants to overrepresent certain subgroups in the population. This method involves dividing the population into strata and then sampling from each stratum at a rate disproportionate to its size in the population.
115
Nonprobability sampling is characterized by:
Select one:
a. Each member of the population having a known and equal chance of selection.
b. The use of random selection techniques.
c. Samples being selected based on the judgment or convenience of the researcher.
d. The ability to generalize the findings to the larger population.
e. The requirement of a complete list of the population.
Answer:
c. Samples being selected based on the judgment or convenience of the researcher.
Explanation:
Nonprobability sampling is characterized by the absence of random selection. In this type of sampling, participants are often chosen based on the convenience, accessibility, or judgment of the researcher, rather than each member of the population having an equal chance of being selected.
116
In research, stratified random sampling is particularly useful when:
Select one:
a. The population is homogenous.
b. The researcher wants to ensure that specific subgroups are proportionally represented.
c. Convenience is the most important factor.
d. The population size is very small.
e. Random selection is not possible.
Answer:
b. The researcher wants to ensure that specific subgroups are proportionally represented.
Explanation:
Stratified random sampling is used when the researcher wants to ensure that certain subgroups within the population are proportionally represented in the sample. The population is divided into different 'strata' or subgroups, and random samples are drawn from each stratum.
117
Cluster sampling is often employed in research studies when:
Select one:
a. The population is large and spread out over a wide geographic area.
b. The population is small and easily accessible.
c. High precision in sampling is required.
d. The researcher is focusing on a specific niche group.
e. The researcher aims to survey the entire population.
Answer:
a. The population is large and spread out over a wide geographic area.
Explanation:
Cluster sampling is often used when the population is large and dispersed over a wide geographic area. In this method, the population is divided into clusters (like geographic regions), and a random sample of these clusters is chosen for the study, making data collection more practical and cost-effective.
118
Purposive sampling is best described as a method where:
Select one:
a. Participants are randomly chosen from the population.
b. Participants are selected based on specific characteristics relevant to the study.
c. The entire population is surveyed.
d. Samples are chosen based on ease of access.
e. Statistical methods are used to choose the sample.
Answer:
b. Participants are selected based on specific characteristics relevant to the study.
Explanation:
Purposive sampling involves deliberately selecting participants because of their particular characteristics or qualities that are pertinent to the research question or objective. It's a non-random, targeted approach to participant selection.
119
The main advantage of using a random sample in a research study is that it:
Select one:
a. Ensures the sample will accurately represent the larger population.
b. Allows for convenience and speed in data collection.
c. Guarantees the findings will be valid.
d. Enables the researcher to use qualitative analysis effectively.
e. Ensures a high response rate from participants.
Answer:
a. Ensures the sample will accurately represent the larger population.
Explanation:
The main advantage of using a random sample is that it increases the likelihood that the sample will be representative of the larger population. This is due to every member of the population having an equal chance of being included in the sample, reducing sampling bias.
120
Convenience sampling is typically characterized by:
Select one:
a. High representativeness of the larger population.
b. The use of random selection methods.
c. Selecting participants who are easily accessible to the researcher.
d. Stratifying the population into different subgroups.
e. Sampling with a high degree of precision.
Answer:
c. Selecting participants who are easily accessible to the researcher.
Explanation:
Convenience sampling involves selecting participants based on their accessibility and convenience to the researcher. It's a non-random sampling method often used when speed and ease of data collection are priorities, though it may not provide a representative sample of the larger population.
121
A hypothesis stating that "Increased stress levels in employees lead to higher absenteeism rates" suggests:
Select one:
a. A positive relationship between stress levels and absenteeism rates.
b. A negative relationship between stress levels and absenteeism rates.
c. No relationship between stress levels and absenteeism rates.
d. That absenteeism rates cause increased stress levels.
e. That there is a correlation but not causation between stress and absenteeism.
Answer:
a. A positive relationship between stress levels and absenteeism rates.
Explanation:
This hypothesis suggests a positive relationship between stress levels and absenteeism rates, implying that as stress levels increase, absenteeism rates are also expected to increase.
122
A research hypothesis stating "Regular exercise reduces symptoms of depression" implies:
Select one:
a. A causal relationship where exercise is believed to decrease depression symptoms.
b. That symptoms of depression increase with regular exercise.
c. No relationship between exercise and depression symptoms.
d. A correlation between exercise and depression symptoms without implying causation.
e. That depression causes a decrease in regular exercise.
Answer:
a. A causal relationship where exercise is believed to decrease depression symptoms.
Explanation:
This hypothesis implies a causal relationship where regular exercise is believed to lead to a reduction in symptoms of depression. It suggests that engaging in regular exercise may be an effective way to decrease depressive symptoms.
123
If a researcher hypothesizes that "Higher job satisfaction leads to increased job productivity," this hypothesis implies:
Select one:
a. A positive correlation between job satisfaction and productivity.
b. A negative correlation between job satisfaction and productivity.
c. That job productivity causes increased job satisfaction.
d. No relationship between job satisfaction and productivity.
e. A comparison between job satisfaction and productivity.
Answer:
a. A positive correlation between job satisfaction and productivity.
Explanation:
This hypothesis implies a positive correlation between job satisfaction and productivity, suggesting that as job satisfaction increases, job productivity is also expected to increase.
124
In a study hypothesizing "A diet high in fruits and vegetables leads to a lower risk of heart disease," the hypothesis is suggesting:
Select one:
a. A causal relationship where diet affects heart disease risk.
b. That heart disease influences dietary choices.
c. A negative relationship between diet and heart disease risk.
d. No relationship between diet and heart disease.
e. An observational relationship without causation.
Answer:
a. A causal relationship where diet affects heart disease risk.
Explanation:
This hypothesis suggests a causal relationship where a diet high in fruits and vegetables leads to a lower risk of developing heart disease. It posits that dietary choices have a direct effect on heart disease risk.
125
A researcher hypothesizing "Students who attend more lectures will have higher exam scores" is proposing:
Select one:
a. A causal relationship between lecture attendance and exam scores.
b. That higher exam scores lead to increased lecture attendance.
c. A negative correlation between lecture attendance and exam scores.
d. That there is no relationship between lecture attendance and exam scores.
e. An indirect relationship between lecture attendance and exam scores.
Answer:
a. A causal relationship between lecture attendance and exam scores.
Explanation:
This hypothesis proposes a causal relationship where increased lecture attendance is expected to lead to higher exam scores, suggesting that attending lectures contributes to better academic performance.
126
In a study where the researchers are examining how leadership style (transformational vs. transactional) influences team performance, and considering team cohesion as a mediating variable, the study is primarily focused on:
Select one:
a. The direct relationship between leadership style and team performance.
b. How team cohesion impacts the relationship between leadership style and team performance.
c. The independent effects of leadership style and team cohesion on team performance.
d. Whether team cohesion moderates the relationship between leadership style and team performance.
e. Predicting leadership style based on team performance and cohesion.
Answer:
b. How team cohesion impacts the relationship between leadership style and team performance.
Explanation:
In this study, the focus is on understanding how team cohesion mediates, or acts as a mechanism, through which leadership style (transformational vs. transactional) influences team performance. This implies that the effect of leadership style on team performance is at least partly dependent on the level of team cohesion.
127
A study investigating whether the level of employee engagement moderates the relationship between organizational culture and employee retention would be examining:
Select one:
a. The direct influence of organizational culture on employee retention.
b. How employee engagement changes the impact of organizational culture on employee retention.
c. The mediating effect of employee engagement on organizational culture and employee retention.
d. The independent effects of organizational culture and employee engagement on employee retention.
e. Predicting employee engagement based on organizational culture and employee retention.
Answer:
b. How employee engagement changes the impact of organizational culture on employee retention.
Explanation:
This study is focused on examining the moderating role of employee engagement, which means looking at how the level of employee engagement might alter or influence the strength or direction of the relationship between organizational culture and employee retention.
128
A research study exploring the effect of customer service training on employee satisfaction and considering the role of workplace environment as a moderating variable involves:
Select one:
a. Analyzing how workplace environment directly influences employee satisfaction.
b. Investigating the impact of customer service training on employee satisfaction in different workplace environments.
c. Assessing the mediation effect of workplace environment on the relationship between training and satisfaction.
d. Comparing the independent effects of training and workplace environment on satisfaction.
e. Using workplace environment as a predictor of the effectiveness of customer service training.
Answer:
b. Investigating the impact of customer service training on employee satisfaction in different workplace environments.
Explanation:
In this study, the role of the workplace environment is considered as a moderating variable, which means the research is focused on how the effect of customer service training on employee satisfaction might vary across different workplace environments.
129
If a study is designed to investigate whether organizational support for innovation mediates the relationship between leadership style and organizational performance, it aims to:
Select one:
a. Determine the direct effect of leadership style on organizational performance.
b. Examine how organizational support for innovation changes the relationship between leadership style and performance.
c. Understand the individual impacts of leadership style and organizational support for innovation on performance.
d. Explore the moderating effect of organizational support for innovation between leadership style and performance.
e. Assess the prediction of leadership style from organizational performance and support for innovation.
Answer:
b. Examine how organizational support for innovation changes the relationship between leadership style and performance.
Explanation:
The study aims to examine how organizational support for innovation mediates (or serves as a link) in the relationship between leadership style and organizational performance. This means investigating whether and how the presence of organizational support for innovation influences or explains the effect of leadership style on organizational performance.
130
In a study exploring the relationship between job training and employee productivity, with job satisfaction as a potential mediator, the research is primarily focused on:
Select one:
a. The direct correlation between job training and employee productivity.
b. How job satisfaction might explain the relationship between job training and employee productivity.
c. The independent effects of job training and job satisfaction on productivity.
d. Whether job satisfaction moderates the impact of job training on productivity.
e. Predicting job training effectiveness based on job satisfaction and employee productivity.
Answer:
b. How job satisfaction might explain the relationship between job training and employee productivity.
Explanation:
The study is focused on exploring how job satisfaction may mediate, or explain, the relationship between job training and employee productivity. This means investigating whether job training influences employee productivity indirectly through its effect on job satisfaction.
131
If a research study investigates whether the relationship between workload and job satisfaction is different for employees of different age groups, the study is examining:
Select one:
a. The mediation effect of age on workload and job satisfaction.
b. The moderating effect of age on the relationship between workload and job satisfaction.
c. A direct relationship between workload and job satisfaction.
d. The independent effects of workload and age on job satisfaction.
e. The causal relationship between age and workload.
Answer:
b. The moderating effect of age on the relationship between workload and job satisfaction.
Explanation:
This study is examining the moderating effect of age, meaning it is investigating whether the impact of workload on job satisfaction varies among different age groups. The focus is on how the relationship between workload and job satisfaction changes based on the age of the employees.
132
A study aiming to understand how employee motivation influences productivity, with job training as a mediator, seeks to determine:
Select one:
a. If job training directly affects employee productivity.
b. Whether employee motivation affects productivity through the factor of job training.
c. The direct relationship between motivation and productivity without considering job training.
d. The independent impacts of motivation and job training on productivity.
e. If job training moderates the relationship between motivation and productivity.
Answer:
b. Whether employee motivation affects productivity through the factor of job training.
Explanation:
In this study, job training is being examined as a mediating variable. The research aims to determine if employee motivation influences productivity indirectly through the factor of job training.
133
When a research study assesses the effect of a new health intervention on patient outcomes and considers the role of patient adherence as a mediating variable, it is investigating:
Select one:
a. How patient adherence directly impacts patient outcomes.
b. Whether the intervention affects patient outcomes through the level of patient adherence.
c. The independent effects of the health intervention and patient adherence on outcomes.
d. Whether patient adherence moderates the impact of the intervention on outcomes.
e. The direct relationship between the health intervention and patient outcomes.
Answer:
b. Whether the intervention affects patient outcomes through the level of patient adherence.
Explanation:
The study is focused on understanding how the new health intervention might affect patient outcomes indirectly through the mediating variable of patient adherence. It seeks to determine if the effectiveness of the intervention on outcomes is influenced by how well patients adhere to it.
134
In a study exploring whether the relationship between team diversity and team performance is influenced by communication style, communication style is being considered as a:
Select one:
a. Mediating variable.
b. Moderating variable.
c. Dependent variable.
d. Independent variable.
e. Control variable.
Answer:
b. Moderating variable.
Explanation:
In this study, communication style is being considered as a moderating variable. The research aims to see if and how communication style affects the relationship between team diversity and team performance.
135
A study that investigates the relationship between diet and health outcomes, with exercise habits as a moderating variable, is essentially looking at:
Select one:
a. How exercise habits directly influence health outcomes.
b. The direct effect of diet on health outcomes.
c. How exercise habits affect the relationship between diet and health outcomes.
d. The mediation effect of exercise habits between diet and health outcomes.
e. The independent effects of diet and exercise habits on health outcomes.
Answer:
c. How exercise habits affect the relationship between diet and health outcomes.
Explanation:
In this study, exercise habits are being examined as a moderating variable. The focus is on how exercise habits might influence or change the relationship between diet and health outcomes.
