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Research methods Flashcards

1
Q

What is a laboratory experimental method?

And evaluate

A

An experiment where the environment is set up and highly controlled. Must be a random assignment of participants to conditions. IV and DV is manipulated
High in internal validity
Low in ecological validity

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2
Q

What is a field experimental method?

And evaluate

A

An experiment where the IV and DV are manipulated however it still differs to a lab due to the setting being a real life setting (often are unaware in experiment)
High in ecological validity
Ethical issues (need informed consent and right to withdraw), extraneous variables

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3
Q

What is a quasi experimental method?

And evaluate

A

An experiment where IV is naturally occurring however there is no random allocation of condition to participants. So participants are allocated to something like age.
Allows sensitive/ unethical events to be researched, comparisons between types of people
Lacks internal validity, confounding variables

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4
Q

What is a natural experimental method?

And evaluate

A

An experiment where something has naturally occurred and a researcher decides to investigate it. IV is naturally occurring.
Allows sensitive/ unethical events to be researched, high ecological validity
No control over extraneous variables

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5
Q

What is an independent groups design?

Evaluate

A

Participants are split into groups where each do only one condition of the IV. Used in quasi and natural
Less likely to guess the purpose, no order effects
Need a large sample, can’t control for participant variables Controlled via random allocation

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6
Q

What is a repeated measures design?

Evaluate

A

Each participant does both the conditions
Don’t need a larger sample, no participant variables
Effected by order effects (counterbalancing), demand characteristics

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7
Q

What is a matched pairs design?

Evaluate

A

Participants do one condition yet they’re separated into groups based on similarities so they act as a control for each other
Less participant variables, no order effects
No two people are the exact same, lots of time

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8
Q

What are the measures of central tendency?

A

(aim to show central position of a data set)
mean (most sensitive, distorted by extreme scores)
median (unaffected by extreme scores, can be misleading not all scores taken into account)
mode (unaffected by extreme scores, an unrepresentative measure doesn’t tell us anything about other scores)

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9
Q

What are the measures of dispersion?

A

(aim to show the spread of scores in a data set)
Range (easy to calculate, can be distorted by extreme scores)
Standard deviation- how close the scores are to the mean (takes into account all scores, may hide some extreme values)

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10
Q

What is ecological validity?

A

How well does the setting represent real life

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11
Q

What is temporal validity?

A

How well do the findings represent todays view

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12
Q

What is population validity?

A

How well do the findings represent the population as a whole

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13
Q

What is mundane realism?

A

How well does the task represent something you’d do in every day life

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14
Q

What is internal validity?

A

Is the experiment well controlled and well designed ?

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15
Q

What are demand characteristics?

A

When a participant guesses the purpose of a study and as a result acts unnaturally.

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16
Q

What is an extraneous variable?

A

Any variable which is not the independent variable which has effected the results.

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17
Q

Name the six BPS ethics guidelines

A 
Informed consent 
Lack of deception 
Confidentiality 
A right to withdraw 
Protection from physical and psychological harm
Privacy
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18
Q

What are the types of consent?

A

Presumptive- asking a similar group of people

Prior general consent- the group agree to a range of studies including the one they want to take part in

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19
Q

What are the moral principles?

A

Respect
Competence
Responsibility
Integrity

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20
Q

What is random sampling?

A

Every member of the population has a chance of being selected.
Best chance of being unbiased and representative
But is time consuming and not everyone would be willing

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21
Q

What is opportunity sampling?

A

Sample of people who are available at the time of asking.
Quick and convenient
But may be unrepresentative

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22
Q

What is volunteer sampling?

A

Participants join a study in response to posters or adverts etc
Ethical and not much attrition
Could be unrepresentative due to only willing people

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23
Q

What is systematic sampling?

A

Participants are selected at fixed intervals from a list
Not biased
Time consuming

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24
Q

What is a stratified sample?

A

The population is classified into categories and a specific amount from each is selected
Most representative of population
Very time consuming

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25
What is snowball sampling?
By using word of mouth Sampling is easier for sensitive subjects Prone to bias
26
What do correlations do?
Aims to discover a relationship between two co variables
27
What is a negative and a positive correlation?
Positive- as one increases the other one does also | Negative- as one increases the other decreases
28
What do the following mean about a correlation... | -1, 0, +1
``` -1 = a perfect negative correlation 0 = no correlation at all +1 = a perfect positive correlation ```
29
What are the ways of assessing validity?
``` Face validity (look at the research tool and check the questions are focused and measuring what they're meant to) Concurrent validity (already established questionnaire compare results) ```
30
How is validity improved?
Use of a control group Doing a single blind Doing a double blind Use a lie scale
31
What are the ways of assessing reliability?
Test retest Inter observer reliability Inter rater reliability
32
How is reliability improved?
In an interview a structure can be used In an experiment the IV and DV can be operationalised In an observation the behaviour categories can be operationalised
33
What are all the research methods?
``` Meta analysis Case study Experiment Self report Correlation Observation ```
34
When would you use a bar chart?
Non continuous data, observation
35
When would you use a histogram?
Continuous data
36
When would you use a scattergram?
Correlations, to show a relationship between variables
37
Which hypothesis do we accept when the data is significant?
The alternative hypothesis, the non directional or directional
38
Which hypothesis do we accept when the data is not significant?
The null hypothesis
39
What is a type 1 and type 2 error?
Type 1 = claims there is significance but there is not | Type 2 = claims there is no significance when there is
40
What are the three R's when working with animals?
Reduction Replacement Refinement
41
What are the features of science? | THE PROF
``` Theory construction Hypothesis testing Empirical evidence Paradigm shifts Replicability Objectivity Falsifiability ```
42
What is meant by empirical methods?
Information is gained by experiments, observations, etc. We only know things from direct testing
43
What is meant by objectivity?
Scientist need to work free of bias from both themselves and researchers. Conditions need to be carefully controlled
44
What is meant by replicability?
Valid research need to show similar results when replicated.
45
What is meant by a paradigm shift?
A paradigm is common shared assumptions and methods within scientific discipline. A shift in one occurs when research or other factors cause a change in those common assumptions.
46
What is meant by falsifiability?
A theory which is not able to be proved as wrong is not scientifically correct
47
What is meant by theory construction?
A theory is facts compiled into a series of principles which are then used to predict and understand future research.
48
What is meant by hypothesis testing?
This refers to how theories are modified by testing what is expected
49
What is the difference between inductive and deductive?
Inductive- a hypothesis is made from observation, the hypothesis is tested and a theory is made from conclusions of testing Deductive- a theory is made from observations, from this theory a hypothesis is made and tested. The theory is either correct of not correct
50
How would a content analysis be conducted?
A type of media would be obtained eg. a recorded interview Coding units would be decided before (top down) or after (bottom up) watching The media is watched several times The coding units are marked each time they occur To assess reliability, inter rater reliability and spearman's rho
51
What is an overt and covert observation?
``` Overt = open, the person is aware they're being observed (ethical but demand characteristics ) Covert = closed, the person is unaware they're being watched (no demand characteristics but unethical) ```
52
What is a controlled and naturalistic observation?
``` Controlled = the psychologist observes behaviour in response to a set up situation (lacks ecological validity but same experience each time) Naturalistic = the psychologist observes behaviour in the real world (not ethical but no demand characteristics) ```
53
What is a participant and non participant observation?
Participant = observes behaviour from within a group (can see another viewpoint but often dangerous) Non participant = psychologist observes from a distance (safer but not a better understanding)
54
What are the two types of observation sampling?
Event sampling = counting the number of times a certain behaviour occurs Time sampling = recording behaviours at certain intervals
55
What is quantitive data and qualitative?
``` Quantitive = data which is numbers (easy to produce large amounts, little information) Qualitative = data which is words (detailed data, no generalisations can be made) ```
56
What is and independent and dependent variable?
``` Independent = a variable which is manipulated and change by the experimenter Dependent = a variable which is being measured by the experimenter ```
57
What is a case study?
In depth investigations of a single person or group of people allowing information to be gained on a specific topic
58
What is a closed question?
Questions only allowing answers which go into a specific category. Producing nominal data and some cases ordinal data. Good because the questions are standardised however they lack detail
59
What is an open question?
Questions allowing people to express their answer in more detail, in own words. Good because rich qualitative data is produced however it's time consuming.
60
Evaluate self report techniques
Participants can be asked specific things to aim to get a better answer and situations can be hypothetical This is only useful when the participant is willing to disclose and they may answer to please the experimenter
61
Name some self report techniques
Questionnaires Interviews Diary entries
62
What is an structured interview?
A structured interview is a quantitative research method where the interviewer a set of prepared closed-ended questions Easy to replicate, quick to conduct But not flexible and answers lack detail
63
What is a structured interview?
Unstructured interviews do not use any set questions, instead, the interviewer asks open-ended questions More flexible, produce qualitative data But are tie consuming, expensive
64
What are the types of questions in a questionnaire?
Closed- standardized, data easily turned quantitive and they lack detail Open- rich qualitative data and can be time consuming and tricky to analyse
65
What are the factors making an experiment well designed?
``` Aims Length Pilot Question order Terminology Presentation ```
66
What is a pilot study?
Initial run through of an investigation which ensures all procedures and measures are correct.
67
Describe the peer review process
The research is sent to individuals who are experts on the topic they evaluate methods and designs used, the validity and the structure and language. They decide if the research is accepted or rejected.
68
What is counterbalancing and when is it used?
Counterbalancing is used in a repeated measures design. This is to correct any potential order effects that may have occurred, like the practise effect or boredom or fatigue.
69
What is random allocation and when would you use it?
Random allocation is used to spread participant variables across all conditions of an experiment. This is used in an independent groups design.
70
What are standardised procedures and when are they used?
Instructions with a clear aim to ensure all participants are tested in the exact same way. These are used to prevent situational variables from influencing the dependant variable.
71
What is a double blind study and when is it used?
A double blind study is when a study has an investigator who doesn't know the purpose and also the participants don't know the purpose. This is used to prevent investigator effects.
72
What is nominal data?
Data which is under categories
73
What is ordinal data?
Data with no specific measurement
74
What is interval/ ratio data?
Data with specific units or measure
75
What does a negatively skewed graph look like?
Graph curves to the left
76
What does a positively skewed graph look like?
Graph curves to the right

Psychology (7 decks)

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