If a trained observer's ratings of the aggressive behavior of a child on the playground agree with the ratings made by the child's peers,then the __________ validity of those ratings is supported.

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Concurrent validity is concerned with the degree to which two measures of the same construct are related at the same time. In this scenario, the ratings made by the trained observer and the child's peers are measures of the child's aggressive behavior on the playground. If the ratings agree, then it supports the concurrent validity of those ratings. Construct validity is concerned with the extent to which a measure is related to other measures that assess the same construct, and content validity is concerned with the extent to which a measure covers all aspects of a particular construct. External validity is concerned with the extent to which research findings can be generalized outside of the research context.

If a Trained Observer's Ratings of the Aggressive Behavior of a Child