The self-description questionnaire II and gifted students: Another look atPlucker, Taylor, Callahan, and Tomchin's (1997) "mirror, mirror on the wall"

Plucker, Taylor, Callahan, and Tomchin concluded that confirmatory factor a nalyses (CFA) of responses to the Self-Description Questionnaire (SDQ) II p rovided only limited support for construct validity with gifted students be cause of the modest fit of their CFA models. They acknowledged, however, th at potential complications (e.g., their CFA models, treatment of missing da ta, and highly nonnormal data) meant that their conclusions may be prematur e. Here, the authors analyzed data from their original study (N = 376) and new data from another gifted-student program (N = 837), exploring alternati ve approaches to missing data and data normalization. The a priori model ba sed on the design of the SDQII resulted in a good fit to the data for the t otal group, and the factor solution was invariant across the two samples of gifted students. The results strongly support the construct validity of re sponses to the SDQII by gifted adolescents.