The construct validity of a multidimensional adolescent self-concept was estimated separately for males and females, and the results were compared across gender. The application of four multitrait-multimethod (MTMM) approaches to estimating construct validity was demonstrated, and the scope and consistency of the findings derived from each were…

This study investigated construct validity and factorial invariance of a performance assessment of reading comprehension and writing proficiency through a multitrait-multimethod (MTMM) structure using confirmatory factor analysis. The performance assessment was administered to 1,023 fifth and sixth graders. Interrater reliability was examined for…