Validity Flashcards
What is internal validity
A measure of whether out results obtained are solely affected by changes in the variable.
E.g. Face and Concurrent
What is external validity
A measure of whether data can be generalised to other situations outside of the research environment.
E.g. Ecological and Temporal
What is face validity
Whether the test appears to measure what it says it measures.
Low- Questions about memory in depression questionnaire.
What is concurrent validity
Where the performance of the test in question is compared to a tests that is already trusted within the same field.
Low- compared results are different
High-compared results are similar
What is ecological validity
The extent to with psychologists can apply their findings to other settings predominantly to everyday life.
Low- Bobo Doll Study
High-Schaffer and Emmerson Baby study in home.
What is temporal validity
Refers to the extent to which research findings can be applied across time.
Low- Feud Penis envy was made in a patriarchal society.
How to test face validity
Ask a specialist
How to test concurrent validity
Compare to pre-established results. Concurrent with +0.8
What is a single blind condition
Participants do not know what condition they are in but the researcher does.
What is a double blind condition
Neither the participants nor the researcher know what condition they are in.
What is a lie scale
Asking two of the same questions in different ways, to see if the participant lies or contradict themselves. E.g 1-5 i sleep well at night, my sleeping has become worse. Both with same answer means data is removed and invalid.
How can you improve validity in an experiment
Use standardised instructions
Compare to a control group
Use a single blind procedure
Use a double blind procedure.
How do you increase validity in questionnaires
Use a lie scale
Keep responses anonymous
How do you increase validity in observations.
Conduct a covert (undercover) version.
How do you increase validity in interviews
Use direct quotations when transcribing
Triangulation