This study described an explicit multidimensional scaling (MDS) model for profile data, the Profile Analysis via Multidimensional Scaling (PAMS) model. It also illustrated the application of this model to the study of the structure of cognitive ability patterns using the Woodcock-Johnson Psychoeducational Battery-Revised (WJPB-R; 1989; 1991) and…

The model of cognitive ability proposed by John B. Carroll is described and its implications for education traced. The Carroll model is unique in that it is based on datasets reanalyzed by standard procedures. The variables and factors established through factoring were used to construct the three-stratum Carroll model. (SLD)

Describes a new 48-item self-report instrument, the Multidimensional Measure of Children's Perceptions of Control, which defines children's perceptions of control as understanding the locus of sufficient cause for success and failure. Three dimensions of third- through ninth-grade children's perceptions of control are assessed within three…