Bifactor latent structures were introduced over 70 years ago, but only recently has bifactor modeling been rediscovered as an effective approach to modeling "construct-relevant" multidimensionality in a set of ordered categorical item responses. I begin by describing the Schmid-Leiman bifactor procedure (Schmid & Leiman, 1957) and highlight its…

Twelve divergent production tests were administered to two groups of adolescents with average Wechsler Intelligence Scale for Children (WISC) IQ's of 69.5 and 104.5. Six divergent production factors were extracted in each group and rotated to a target derived from Guilford's Structure of Intellect Model. The subnormal group fitted better to the…

Seeks empirical evidence of convergence of concepts measured by two personality inventories--Cattell's High School Personality Questionnaire and Jackson's Personality Research Form. Implication of the levels of factor convergence obtained in relation to theory building and prediction are discussed. (RC)

The latent trait-state model for estimating stable and changing components of depressive symptomatology in adolescents was studied by investigating the factorial structure of the Center for Epidemiological Studies Depression Scale on 4 occasions with 805 high school students. Findings are discussed with regard to depressive mood fluctuations among…

A sample of gang members and a comparison group of club boys are compared on 11 factors from the Objective-Analytic Personality Factor Battery. The findings are examined in light of several hypotheses drawn from theories of personality and of gang delinquency. (Author/CTM)