Content validity in psychological assessment: A functional approach to concepts and methods.

This is the authors' abstract. We don't add key points for this paper.

This article examines the definition, importance, conceptual basis, and functional nature of content validity, with an emphasis on psychological assessment in clinical situations. The conditional and dynamic nature of content validity is discussed, and multiple elements of content validity along with quantitative and qualitative methods of content validation are reviewed. Finally, several recommendations for reporting and interpreting content validation evidence are offered.