Criterion-related validity assesses scores in relation to what?

Criterion-related validity evaluates the effectiveness of a test by comparing its scores to a specific criterion measure that is relevant to the construct being assessed. This criterion could be another test, a behavioral outcome, or any standard that is deemed important in determining the accuracy and applicability of the test results. The primary purpose of this form of validity is to establish how well one measure predicts outcomes based on another established measure, thus ensuring that the test is a useful tool in predicting future performance or results.

In the context of exceptional student education, using a criterion measure helps educators understand how well a specific test can inform decisions regarding student placement or identify the need for additional support, thereby fostering more tailored interventions and instructional strategies.