"Classification: Purposes, Principles, Progress, Prospects" by Robert R. Sokal is reprinted in this document. It summarizes the principles of classification and cluster analysis in a manner which is of specific value to the Marine Corps Office of Manpower Utilization. Following the article is a 184 item bibliography on cluster analysis…

The Kvaraceus Delinquency Proneness Scale (KD Scale) was developed as an instrument designed to aid in prediction of future juvenile delinquents. The purpose of this research was to evaluate the predictive validity of the instrument over a 5-year period. Indexes of delinquency adjustment and academic achievement served as the validational…

An aspect of construct validity of the six scales of the Career Maturity Inventory was investigated with 127 ninth-grade students. The scales were found to be more highly intercorrelated than is desirable. Coupled with their modest reliabilities, this outcome was interpreted as a major limitation of the instrument. (Author)

Confirmatory factor analysis was applied to test second- and higher-order factor models in the areas of structure of abilities, allometry, and the separation of specific and error variance estimates. The estimation of validity and reliability, second-order models within factor analysis models, and the concept of discriminability were also studied.…

Study examined the effects of the variables of list length and pronunciation instructions on performance in the verbal discrimination and two category classification tasks and found that the effects of these variables on the two tasks were quite comparable. (Author)

Purpose of the investigation was to identify the underlying content and cognitive dimensions in a standardized achievement test in the area of life and health insurance. (Author)

Despite the numerous individual illustrations in the literature showing how the discrimination index may be used to identify items with faults, its overall effectiveness as a measure of item quality, defined in terms of the presence or absence of faults, is not clear. This study investigates its validity. (Author/RK)

There is evidence that when spatial orientation and spatial visualization are measured with either the French or Guilford-Zimmerman tests that the variance due to authorship is greater than that due to trait. (Authors)

Research Project at Utica College to identify potential college dropouts using the technique of Multiple Discriminant Analysis. (RY)

Interprets College Interest Inventory, administered to 284 students, both ways, with neither method proving superior. Suggests that under restricted conditions, discriminant function might be more appropriate for counseling purposes than configural analysis. (Author/CJ)

Used a current attrition study to show the usefulness of discriminative analysis and a cross validation technique applied to student nonpersister questionnaire respondents and nonrespondents. Results of the techniques allowed delineation of several areas of sample under-representation and established the instability of the regression weights…