Overview & Description: It refers to the extent to which scores on a measurement correspond to measures of a criterion behavior.

Key Points:

1. Predictive Validity: How well a measure predicts outcomes.
2. Concurrent Validity: How well a measure correlates with current outcomes.

Implications: Ensures that a test or instrument is measuring what it intends to measure in real-world terms.

References:

• Cronbach, L. J., & Meehl, P. E. (1955). Construct validity in psychological tests. Psychological Bulletin, 52(4), 281.