The extent to which an observed effect is genuine does it measure what is was supposed to measure, and can it be generalized beyond the research setting within which it was found
what is Internal Validity
Measuring what it intends to measure, i.e. whether the IV causes the DV.
what is External Validity
To what extent the findings can be generalised.
Face Validity
The extent to which test items look like what the test claims to measure.
what is Concurrent Validity
A means of establishing validity by comparing an existing test or questionnaire with the one you are interested in.
what is Ecological Validity
The ability to generalise a researcheffect beyond the particular setting in which it is demonstrated to other settings.
what is Temporal Validity
Concerning the ability to generalise a research effect beyond the particular time period of the study.
