The development of a predictive equation capable of explaining a significant percentage of enrollment variability at Florida International University is described. A model utilizing trend analysis and a multiple regression approach to enrollment forecasting was adapted to investigate enrollment dynamics at the university. Four independent…

An explanation is given of what is meant by "sample-free" item calibration and by "item-free" person measurement as these terms are applied to the one-parameter logistic test theory model of Georg Rasch. When the difficulty of an item is calibrated separately for two different samples the results may differ; but, according the…

Despite advances in common factor analysis, a review of 89 studies published in four selected journals between 1963 and 1976 indicated that behavioral scientists preferred principal components analysis, followed by varimax or orthogonal rotation. Resultant row sums of squares of factor matrices from principal component analyses of real data sets…

Presented is a description of the experimental first-year algebra materials "Algebra Through Applications"; a description of the procedure used in evaluating these materials; and recommendations for changes in the materials, implementation, evaluation, and funding. The evaluation indicates that these materials can be effectively used in a variety…

This paper is an explication of the concept of a network of consultants to help people obtain answers to day-to-day questions for which answers are known. Each member of such a network is viewed to have three capabilities: 1)answering questions directly from his own memory, 2)answering questions with the aid of library resources, and 3)referring…

A model demonstrates how low correlations for academic achievement in separate units of instruction can be compatible with high correlations for cumulated achievement. The unit achievement is assumed to consist of a task-specific part and a part correlated with a predictor. When units of learning are cumulated, attrition of earlier learning takes…

The components of an information system for institutions in higher education are described. The information produced from such a system will be that which is required not only for record keeping and operations but also for planning and budgeting. Technical details are not included, only an overview of the main components of the system as seen from…

This document presents a modified cohort survival model which can be of use in making enrollment projections. The model begins by analytically profiling an area's residents. Each person's demographic characteristics--sex, age, place of residence--are recorded in the computer memory. Four major input variables are then incorporated into the model:…

Before implementing a course in the analysis of variance (ANOVA) taught through multiple linear regression, several concerns must be addressed. Adequate computer facilities that are available to students on a low-cost or cost-free basis are necessary; also students must be able to meaningfully communicate with their major advisor regarding their…

The question of whether test factor structure is indicative of the test item hierarchy was examined. Data from 1,000 subjects on two sets of five bivalued Law School Admission Test items, which were analyzed with latent trait methods of Bock and Lieberman and of Christoffersson in Psychometrika, were analyzed with an ordering-theoretic method to…

The rational model of classical economic theory assumes that the decision maker has complete information on alternatives and consequences, and that he chooses the alternative that maximizes expected utility. This model does not allow for constraints placed on the decision maker resulting from lack of information, organizational pressures,…

The chapters in this yearbook describe some of the experiences the individual authors have had in making and/or using multisensory aids in mathematics instruction. A number of different aids are noted to indicate the range of possibilities. Three more chapters set the stage for the remainder of the book which is divided into the following…

The survey reported on in this document addressed itself to discovering what kinds of quantitative models have been developed and implemented for educational decisionmaking during 1965-72, and what planning questions they are intended to answer; where these models have been implemented and to what extent they are being used; and the cost of such…

In this paper, the problem of choosing between education with the usual teacher-student interaction and television-assisted education is considered. The method used to select the alternative with minimum costs is presented, discussed, and applied to Botswana. (Pages 5 and 10 may reproduce poorly.) (Author)

Statistical methods are described for diagnosing and treating three important problems in covariate tests of significance: curvilinearity, covariable effectiveness, and treatment-covariable interaction. Six major assumptions, prerequisites for covariate procedure, are discussed in detail: (1) normal distribution, (2) homogeneity of variances, (3)…