Triangulation -- a combined use of different assessment methods or sources to evaluate psychological constructs -- is still a rarely used assessment approach in spite of its potential in overcoming inherent constraints of individual assessment methods. This paper uses field test data from a new OECD Study on Social and Emotional Skills to examine…

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…