Research Methods unit 4 Flashcards
What are aims?
The stated intentions of the study.
Normally start with ‘to investigate…’
What is a directional hypothesis?
Statement that makes a prediction and states exactly which way the results will go.
‘……..will score higher/lower on…….than…….’
What is a non-directional hypothesis?
Statement that makes a prediction - States there will be a difference but not what that difference will be.
‘There will be a difference in……..between……….and………’
What is the independent variable?
The thing that is manipulated/changed e.g. The different groups or conditions.
What is the dependent variable?
The thing that is measured.
What is Operationalisation?
Explaining how your variables will be measured/manipulated.
E.g. My dependent variable is memory, I will operationalise it by asking my participants to look at twenty pictures and try to recall them.
What is a lab experiment?
Conducted in an artificial setting.
Independent variable is manipulated.
What is a field experiment?
Conducted in a natural setting.
Independent variable is manipulated.
What is a natural/quasi experiment?
Conducted in a natural setting.
Independent variable is not manipulated (it is naturally occurring).
What is a correlation?
Co-variables are tested for a relationship.
Will be either a positive, negative or no correlation.
What is a questionnaire?
A self report method with written questions.
Questions could be open or closed.
What is an interview?
Self report method with spoken questions.
Could be structured or unstructured.
What is an alternative hypothesis?
The predictive statement, could be directional or non-directional.
What is a case study?
In depth normally longitudinal study of one person or a small group.
Uses other methods such as observation and interview within the study.
What is content analysis?
Method for analysing qualitative data by making it quantitative.
Themes are identified in the data, they are operationalised, the a tally is completed every time that theme occurs.
What is research method?
The type of research conducted e.g. Lab, field etc.
What is research/experimental design?
The way participants are organised e.g. Independent groups, repeated measures etc.
What is repeated measures design?
When every participant completes all conditions of the experiment.
What is independent groups design?
When there are different participants for each condition of the experiment.
What is matched participants/pairs design?
When there are different participants for each condition of the experiment but they are matched or fitted for certain characteristics to try and eliminate individual differences.
What is validity?
Accuracy - there are two types (internal and external)
What is reliability?
Consistency
What is internal validity?
The extent to which you are measuring what you set out to measure (I.e. The effect of the IV on the DV)
What is external validity?
Whether you can accurately generalise (includes population validity and ecological validity)