The one parameter latent trait theory of Georg Rasch has two assumptions: that student abilities can be measured on an equal interval scale, and that the success of a student with a given item is a function of student achievement and item difficulty. The grade four Michigan Educational Assessment Program reading test was designed to measure…

THE ABC (APPROACH BY CONCEPT) SYSTEM FOR STORAGE AND RETRIEVAL OF SCIENTIFIC AND TECHNICAL INFORMATION HAS BEEN SUBJECTED TO AN EXTENSIVE PERFORMANCE TEST. IN LI 000 318 THE TEST PROGRAM AND SETUP WAS DESCRIBED AS WELL AS THE METHODOLOGY, AND IN THE SECOND REPORT, LI 000 317, A PRELIMINARY STATISTICAL EVALUATION OF THE TEST RESULTS WAS GIVEN. THIS…

THE PROBLEM OF PREDICTING THE PATTERNS OF USE OF LIBRARY MATERIALS IN ORDER TO DECIDE WHICH MONOGRAPHS SHOULD BE REMOVED FROM A MAIN COLLECTION AND PLACED IN STORAGE IS STUDIED IN THIS REPORT. SPECIFICALLY, THE STUDY EXAMINES PREVIOUSLY DEVELOPED MATHEMATICAL MODELS AND DEVELOPS NEW MATHEMATICAL MODELS AND STATISTICAL TECHNIQUES FOR STUDYING THE…

THIS REPORT PRESENTS A DISCUSSION OF 2 TECHNIQUES WHICH CAN BE USED TO REPRESENT AND INTERPRET MULTIVARIATE STATISTICAL SYSTEMS WHEN IT IS FELT THAT THERE ARE CAUSAL RELATIONS BETWEEN SOME OF THE VARIABLES. THE BASIC TECHNIQUE IS PATH ANALYSIS AND THE OTHER IS ITS EXTENSION THROUGH THE USE OF RECURSIVE SYSTEMS OF EQUATIONS. THE ANALYSIS IS…

WITH THE INTENTION OF APPLYING A MATHEMATICAL THEORY OF LEARNING TO SECOND LANGUAGE ACQUISITION, A TWO-PART EXPERIMENT USING TWO SETS OF 20 STUDENTS WAS CONDUCTED AT STANFORD UNIVERSITY. IN EXPERIMENT I THE SS (SUBJECTS) WERE ASKED TO DISTINGUISH DIFFERENCE OR SAMENESS IN PAIRS OF INITIAL RUSSIAN SYLLABLES. THESE 144 SYLLABLES WERE GROUPED INTO…

This study sought to develop a predictive model for use by educational decision makers in establishing junior colleges, as more needs and costs become known and more precise bases for judgment are needed. Decision-making models were considered suitable for this study. Correspondence with officials produced a valid list of criteria and identified…

The deliberate assignment of students to groups, generally grades and classrooms, is an integral part of education in schools; in addition, tracks, streams, and ability groups are created in many educational systems. The resulting partitioning of students is referred to here as the organizational differentiation of students. The purpose of this…

This paper describes the philosophy of intelligent instructional systems and presents an example of one such system in the domain of manipulative mathematics--BLOCKS. The notion of BLOCKS as a paradigmatic system is explicated from both the system development and educational viewpoints. From a developmental point of view, the modular design of…

A model of occupational choice based on the theory of human capital is developed and estimated by conditional logit analysis. The empirical results estimated the probability of individuals with certain characteristics (such as race, sex, age, and education) entering each of 11 occupational groups. The results indicate that individuals tend to…

Model identification of time-series data is essential to valid statistical tests of intervention effects. Model identification is, at best, inexact in the social and behavioral sciences where one is often confronted with small numbers of observations. These problems are discussed, and the results of independent identifications of 130 social and…

This comparative study is broadly divided into two parts. The first presents a simple approximate internationally data-based university overall mathematical resource model derived from an original analysis of a 15-university international sample from the CERI (Center for Educational Research and Innovation) 1968/1969 Information Survey. It…

The use of games and gaming, which are simulated decision making, is examined in a paper addressed to the manager and administrator in higher education. Focus is on the use of games in situations of resource allocation for budgeting and long-range planning. Basic definitions and concepts are presented, followed by a discussion of the scope and…

The process of selecting applicants for admission to a new school of medicine (Southern Illinois University School of Medicine) is examined through the use of multivariate regression techniques. More than 250 variables were analyzed and classified as to source of data: student American Medical College Application Service (AMCAS) application,…

This paper considers (1) the requirements imposed on data in order to conform to the Rasch model, (2) some common sources of departure from the model, and (3) a procedure for recognizing the occurrence of these disturbances. The specific disturbances discussed are guessing, practice, speededness, and bias. The observed characteristic curve for…

Procedures are presented for equating simultaneously several tests which have been calibrated by the Rasch Model. Three multiple test equating designs are described. A Full Matrix Design equates each test to all others. A Chain Design links tests sequentially. A Vector Design equates one test to each of the other tests. For each design, the Rasch…