Resumen de Construct Validation of Hebrew Versions of Three Physical Self-Concept Measures: An Extended Multitrait-Multimethod Analysis
Herbert W. Marsh, Michael Bar-Eli, Sima Zach
This study extends support for the construct validity of the three strongest physical self-concept measures for 395 Israeli university students (60% women) aged 18 to 54, demonstrating a new extension of the multitrait-multimethod (MTMM) design that incorporates external validity criteria and a test of jingle-jangle fallacies. Structural equation models of this MTMM data confirmed the a priori 23-factor structure of the three instruments, and the convergent and discriminant validity of factors from each instrument in relation to those from the other instruments. There were few age effects, whereas gender differences were smaller than expected and stable over age. In support of the known-group-difference approach, physical education majors had systematically higher physical self-concepts than management majors. Relations of body image to self-concept factors supported the convergent and discriminant validity of the physical self-concept factors and the separation of body fat from physical appearance self-concepts, but having a more obese body was not significantly related to health self-concept or global self-esteem factors.
