Internal consistency as one rationale for item selection from the unverse of possible test items is discussed and formulae are presented which relate the maximum internal consistency of a test to the largest eigenvalue of the interitem correlation matrix. A computer program to perform these calculations is presented. (Author/JKS)

Multiple matrix sampling is a psychometric procedure in which a set of test items is subdivided randomly into subtests of items with each subtest administered to different subgroups of examinees selected at random from the examinee population. Although each examinee receives only a proportion of the complete set of items, the statistical model…

A computer program to generate individualized objective test forms for use in a Student Faced Statistics (SPS) course is described. The program features disproportionate sampling from different item domains and enhanced character generation facility for test printing purposes. (Author)

Research performed pursuant to a grant from the Charles F. Kettering Foundation.

The effect of stratified sampling of items on the estimation of test score distribution parameters by multiple matrix sampling was studied. Item difficulty and/or interitem correlations were the bases of stratification. Various item iniverses were created by computer simulation and sampled according to several plans. The results indicate that…

Research performed pursuant to a grant from the Charles F. Kettering Foundation.

Research performed pursuant to a grant from the Charles F. Kettering Foundation.

A subject by item matrix of test responses is shown to be a useful heuristic in criterion referenced and norm referenced test analysis, and in the teaching of measurement. The pattern of responses within the matrix provides indications of item interactions, weak deceptors, and conventional test statistics. The strong visual analogy between the…

Monte Carlo research with TAILOR, a program using implied orders as a basis for tailored testing, is reported. TAILOR typically required about half the available items to estimate, for each simulated examinee, the responses on the remainder. (Author/CTM)

Described and listed herein with concomitant sample input and output is the Fortran IV program which estimates parameters and standard errors of estimate per parameters for parameters estimated through multiple matrix sampling. The specific program is an improved and expanded version of an earlier version. (Author/BJG)

Classroom Teacher Support System (CTSS) is a prototype system for computer-assisted construction and scoring of tests, using questions from a central data bank. The computer programs for CTSS were developed by International Business Machines Corporation for study in the Los Angeles City Unified School District in 1969 and 1970. In order to provide…

An induced course load matrix (ICLM) can be a valuable tool for examining the educational process at most postsecondary educational institutions, but the complexity and bulk of the ICLM computer printout is a hindrance. Experiences in using an ICLM at the University of North Carolina at Chapel Hill are described. Examples from an ICLM printout are…