Concurrent validitymeasures the test against a benchmark test and high correlation indicates that the test has strong criterion validity.
Predictive validity is a measure of how well a test predicts abilities. It involves testing a group of subjects for a certain construct and then comparing them with results obtained at some point in the future.
Content validity is the estimate of how much a measure represents every single element of a construct.
Construct validity defines how well a test or experiment measures up to its claims. A test designed to measure depression must only measure that particular construct, not closely related ideals such as anxiety or stress.
Convergent validity tests that constructs that are expected to be related are, in fact, related.
Discriminant validitytests that constructs that should have no relationship do, in fact, not have any relationship. (also referred to as divergent validity)
Face validity is a measure of how representative a research project is ‘at face value,' and whether it appears to be a good project.
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