A model is proposed for the clinical synthesis of data from psychological tests of persons with visual impairments. The model integrates the concepts of the ideal type and Bayesian probability and compares actual test scores with ideal scores through use of a pattern similarity coefficient. A pilot study with Business Enterprise Program operators…

This report describes new statistical procedures for item response analysis using estimation of item response curves used in mental testing with ability parameters treated as a random sample. Modern computer technology and the EM algorithm make this solution possible. The research focused on the theoretical formulation and solution of maximum…

Many schools are making changes in their cumulative record systems or are instituting new systems. The reason for this increased interest in cumulative records is their recognized value as a tool in the program of pupil guidance and adjustment. The greatest aid to the pupil can be given only when his rate and trend of development in various…