Extent to which findings derived from 4 approaches to multimethod multitrait analyses (MTMM) were consistent in providing estimates of construct validity related to measurement of 4 dimensions of perceived competence across 4 maximally dissimilar rating methods was determined using sample of 158 eleventh graders in Canada. Four MTMM approaches included Campbell-Fiske, general condirmatory factor analytic (CFA) model, CFA (Correlated Uniqueness) model, and Composite Direct Product model. (SLD)