Factor analysis was used to measure the equivalence of the personality constructs measures by four different rationally devised inventories. The tests were administered to high school and college student samples. Twelve dimensions were found to be common to two or more inventories and consistent across the two samples. (Author/MV)

Cognitive differences between 987 LD children and 178 EH children in public schools on a psychoeducational assessment battery were studied, and differences in factor structure were investigated. Caution is suggested in interpreting the results of multivariate statistical analyses, which indicated heterogeneity in the matrices of LD and EH…