Validity Flashcards
Validity
Is it measuring what it intended to measure?
External validity
Can the observed effect be generalised to all people and times
Internal validity
Are the effects due to a manipulation of the IV
Ecological validity
The extent in which the research is applicable and demonstrated in other settings
Temporal validity
The ability to generalise the findings beyond the historical context
Concurrent validity
The extent to which a psychological measure relates to an existing measure
Face validity
The extent to which a questionnaire (etc) appears “on the face of it” to be measuring what it claims
Raliability
The consistency of the measurements
How to improve validity of a questionnaire?
- Make anonymous
- Incorporate a lie scale
- compare and remove ambiguous questions
How to improve validity of experiments?
- use a control group
- standardised procedures
- double blind
How to improve validity of an observation?
- covert
- ensure behaviour categories aren’t too broad
- pilot study
