Validity refers to the degree to which a measure accurately measures the specific construct that it claims to be measuring. Criterion-related validity is concerned with the relationship between individuals' performance on two measures used to assess the same construct. It specifically measures how closely scores on a new measure are related to scores from an accepted criterion measure. There are two forms of criterion-related validity: predictive validity and concurrent validity.
Concurrent validity focuses on the extent to which scores on a new measure are related to scores from a criterion measure administered at the same point in time, whereas predictive validity uses the scores from the new measure to predict performance on a criterion measure administered at a later point in time.
Examples of contexts where predictive ...
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