Structural equation models of the same construct collected on different occasions are evaluated in 2 studies involving the evaluation of 157 college instructors over 8 years and data for over 2,200 high school students over 4 years for the Youth in Transition Study. Results challenge overreliance on simplex models. (SLD)

The purposes of the present investigation were to examine the dimensionality of the Rotter Internal-External (I-E) scale, to test the invariance of its factor structure before and after an intervention designed to alter I-E, and to demonstrate the use of confirmatory factor analysis. An a priori model based on the content of the Rotter items…

The Self Description Questionnaire II (SDQII) results from 901 Australian secondary school students were factor analyzed and the factors correlated to identify the relationship of self-concept factors to age, sex, and academic achievement. Findings supported the multidimensionality of self-concept and support the construct validity of the SDQII.…

New academic self-concept measures were used to assess self-concepts for 234 boys in grades 5 and 6 (13 subjects) and 524 boys in grades 7 through 10 (16 subjects) at a Catholic boys school in Sydney (Australia) and to test the Marsh/Shavelson model. Academic self-concept is remarkably subject specific. (SLD)