Criterion-Related Validity
Criterion validity is one of three main components of validity and explains how well the test in question relates to the “gold standard” of the same construct. Most patient-reported outcomes have no “gold standard” and thus researchers should determine convergent validity instead of criterion validity1.
Criterion validity has 2 forms:1
- Concurrent validity
- Predictive Validity
Some articles reference a 3rd form of criterion validity, known as “prescriptive validity”2.
The key feature of a criterion validity approach is that there must be a ‘‘gold standard’’ criterion against which scores on the focal measure can be assessed.
Concurrent Validity
Concurrent Validity is a type of criterion validity that tests whether a measure is consistent with the “gold standard,” measured at the same time1.
Predictive Validity
Predictive Validity is a type of criterion validity that tests whether a measure can predict the outcome of the gold standard measured at a future point in time1