Criterion Validity A criterion is a trait or work behavior that is predicted by a test. Criterion validity is established when the test or measure either predicts or correlates the behavior:Predictive Validity Predictive validity compares the test scores of a test given at the beginning of a job before new employees have experience to the same criterion collected at some future time. When the employees have had some experience (for example, 6 months or 1 year) with the job, the manager evaluates their performance. The original test scores are then measured against the criterion (the evaluation ratings), and the test is validated if they’re similar.Concurrent Validity The process for determining concurrent validity is similar to that of determining predictive validity. The difference is that the criterion measurement occurs at the same time the test is given and not at a later time.