This study examined the factor structure of the Independent Living Scales in two subscales of the measure, Managing Money (MM) and Health and Safety (HS), that have been recommended as most valid for predicting competency adjudications (Quickel & ...
Our field acknowledged the importance of discriminant validity since Campbell and Fiske’s (1959) multitrait-multimethod matrices (MTMM), and yet, the presence of construct proliferation serves as evidence of the lack of clarity or insufficiency of...