Research Methods Flashcards
(108 cards)
What is content analysis?
A research technique that enables the indirect study of behaviour by examining communications that people produce, such as texts, emails, TV, film and other media. The aim is to summarise and describe this communication in a systematic way so overall conclusions can be drawn.
Describe coding.
Coding is the initial stage involved in content analysis. Very large data sets are catergorised into meaningful units. For example, counting the amount of times a word occurs to produce a quantitative value.
Describe thematic analysis.
Themes may occur once data has been coded. A theme may be explicit or implicit and occurs when an idea is recurrent. Themes are often more descriptive than codes. E.g. ‘A drain on the resources of the NHS’. Once identified, hey can be placed under broader categories such as ‘control’ or ‘treatment’. Once a researcher has collected a wide range of themes that cover the data he/she is analysing, they will collect new data to check for validity. If this new research supports previous conclusions, a researcher will write up a report using quotes from the data analysed to illustrate each theme.
Evaluate case studies.
✅ - Rich detail that sheds light on very unusual and atypical forms of behaviour. Proffered to superficial data collected from experiments.
✅ - Add to our understanding of normal behaviour - e.g. HM demonstrating 2 separate stores in the multi store model.
✅ - Create more hypothesis for further testing which can lead to paradigm shifts.
✅ - Ethics - participants not forced in to unethical situations.
❌ - Low generalisability and reliability and control - small samples and longitudinal studies.
❌ - BIAS - researcher and family - recall of past events may be inaccurate - lowers validity.
❌ - Ethics - consent and right to withdraw and privacy.
Evaluate content analysis and thematic analysis.
✅ - circumnavigates ethical issues associated with psychological research - much content analysed is already in the public domain - no issues with consent.
✅ - High external validity - e.g. Emails and text messages
✅ - flexible - produces both quantitative and qualitative data - objective research.
✅ - Inter-rater reliability.
❌ - Indirect - means conclusions may not make sense because the data was studied outside of the context in which it was created - researcher may infer opinions and motivations that were never actually there.
❌ - Simplistic - quantitative data can lack representation of real life activities. OR LACK OBJECTIVITY.
❌ - Researcher bias - but researchers are clear of this and often refer to it in their final reports.
Describe what a case study is.
A case study is the analysis of a specific (group of) individual(s), institution or event. These are often unique, such as a person with a rare disorder or the lead up to the 2011 London riots. They are often longitudinal. Mainly qualitative data is collected throughout the use of interviews, observations and questionnaires. Sometimes experimental methods, which test what the case is capable or not capable of, are used to collect quantitative data.
Define reliability.
The extent to which findings from an investigation or measuring device are reliable. A measuring device is said to be reliable if it measures consistent results every time it is used.
Describe the test-retest.
Test-retests are used to measure the reliability of a measuring tool. It involves administrating the same experiment or questionnaire to the same group of people on a different occasion.
There must be enough time between tests for the participants not to remember the aims or answers to questions but also not for their opinions or abilities to have changed. The scores from both tests must be correlated and if they are significant, they are classed as having good reliability.
Describe inter-rater reliability.
Inter-rater reliability is the extent to which the observations and decisions of two researchers are the same. It is highly applicable to observations where using only one researcher may produce subjectivity bias.
To achieve this, a small-scale pilot study may be run prior to the study to see if researchers are applying behavioural categories in the same way.
The results of each researcher is correlate DNA dig they have a correlation of >+.80 then they are said to have inter rested reliability.
Describe the ways in which reliability can be improved.
- On questionnaires that have low correlations, ambiguous questions which may be interpreted differently by separate participants will need rewording. For example, open questions should we replaced by closed questions with fixed answers.
- For interviews, the same researcher should be used each time. If this is not possible, then all interviewers should be trained so that one does not ask more leading questions than the other. Alternatively, more closed questions could be used as this reduces ‘free-flowing’ answers.
- For laboratory experiments, participants should be tested under the same conditions each time as being extremely tired, for example, may lower performance in a condition compared to being alert in another condition. Alternatively, counter balancing can be used to assess for any order effects that may reduce reliability. If found, the experiment would need redesigning to reduce these effects.
- In observations, all variables must be clearly operationalised, e.g. Pushing rather than aggression. Catergories must be self-evident, measurable and not overlap, e.g. Hugging and cuddling.
What is the split-half method?
This involves comparing answers from the first half of a questionnaire to the second half to look for a positive correlation.
What is validity?
The extent to which an observed effect is genuine, has measured what it set out to measure and can be generalised beyond the situation in which it was found.
Define internal validity.
The extent to which findings are due to the manipulation of the independent variable or a result of another confounding variable, such a de,and characteristics.
Define external validity.
The extent to which findings of an investigation can be generalised to other settings, peoples or eras.
Define ecological validity.
The extent to which findings can be applied to ‘everyday’ situations. Many aspects must be analysed to decide whether settings can be generalised beyond the research setting.
Define temporal validity.
The extent to which findings from a research study can be generalised to other historical eras. It is a form of external validity. Examples of psychology that have low temporal validity include findings from Asch and Milgram or Freud’s concept of penis envy.
Define face validity.
A basic form of validity in which a measure is scrutinised to determine whether it appears to measure what it is supposed to measure. For example, does a test of anxiety look like it measures anxiety. It can be measured by simply observing a measuring instrument or asking the opinion of an expert to check it.
Define concurrent validity.
The extent to inch a psychological measure relates to an existing psychological measure. E.g. A new intelligence test compared to a Stanford-Binet test.
List the ways of improving validity.
- In an experiment, a control group can be used to see whether changes in the DV were due to the independent variable.
- To reduce demand characteristics/participant reactivity, standardised procedures, double blind and single blind methods may be used.
- In questionnaires, lie scales or promises that answers will be keep anonymous will reduce social desirability bias.
- In observations covertness is used to ensure participant behaviour is natural. Behavioural categories must be well operationalised to ensure that only the behaviour described is being marked.
- in qualitative research such a case studies and interviews, triangulation is used to reduce interpretive validity. This involves collecting data though many research methods such as interviews, questionnaires and observations.
- In general to increase validity, participants should made less aware they are under investigation, should be placed in more natural settings, representative samples should be used, extraneous variables should be controlled for and research could be repeated throughout different times of the day.
What is nominal data?
Data that is represented in the form of categorical data. It is sometimes called categorical data. It is discrete in that one item can only appear in one of the categories.
What is ordinal data?
Ordinal data is data that is ordered in some way for example a scale of loving psychology where 1 is hate and 10 is love. Original data does not have equal intervals between each unit. It also lacks precision as it is based on subjective opinion rather than objective measures. E.g. IQ tests are derived from a view of what constitutes intelligence rather than any universal measure. They measure psychological constructs. Ordinal data is also called unsafe data and because of this I is converted into ranks before being used in statistical testing.
What is interval data?
Interval data is data based on numerical scales that include units or equal, precisely defined size. For example, a stopwatch is a public scale of measurement that produces data on accepted units of measurement. It is the most precise and sophisticated form of data in psychology and is a necessary criterion for the use of parametric tests. It is better than ordinal data because more detail is preserved (and ordinal is ‘better’ than nominal level).
What are the sub sections of a journal?
- Title.
- Authors.
- Introduction.
- Abstract.
- Methods.
- Results.
- Discussion.
- Referencing.
- Appendix.
Describe the abstract of a scientific report.
A section describing the key details of the report in a short summary. It includes all the major elements; the aims, the hypothesis, the methods, the results and he conclusions.
It allows researchers to read a range of of abstracts to decide which are important enough for further investigation.