The Mastery-Learning test model is extended. Methods for estimating prior probabilities are described. The use of an adjustment matrix to transform a probability of mastery measure and empirical methods for estimating adjustment matrix parameters are derived. Adjustment matrices are interpreted as indicators of instructional effectiveness and as…

This study investigated correlations between the Qualitative score of the Porteus Maze Test and age and rates of recidivism of correctional institution inmates. In addition, the study was structured to provide answers to the following questions: (1) Is there a relationship between age and rates of recidivism and the Conformity-Variability score of…

This bulletin attempts to explain the use and limitations of regularly the process of selecting educational areas which should receive additional interpret adequately their meaning to parents and students. A companion publication "Understanding Testing Purposes and Interpretations for Pupil Development," also prepared by HEW, was issued in 1960. A…