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Download full textMyerberg, N. James – 1975
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…
Descriptors: Computer Programs, Item Analysis, Item Sampling, Matrices
PDF pending restorationTritchler, D. L.; Pedrini, D. T. – 1975
When a correlation is taken in a sample in which the range of the variables being correlated is limited, it is often desired to apply the correlation to groups with different ranges for the variables. In such situations, a correction for restriction of range (more precisely, restriction of standard deviation) may be necessary. Considered in this…
Descriptors: Computer Programs, Correlation, Sampling, Statistical Analysis
Tatsuoka, Maurice M. – 1973
A computer-simulated study was made of the sampling distribution of omega squared, a measure of strength of relationship in multivariate analysis of variance which had earlier been proposed by the author. It was found that this measure was highly positively biased when the number of variables is large and the sample size is small. A correction…
Descriptors: Analysis of Variance, Computer Programs, Matrices, Multivariate Analysis
Dobson, Douglas; Cook, Thomas J. – Evaluation Quarterly, 1979
A major problem in social science research is that of successfully carrying out the random assignment of persons to experimental and control groups. In this study a computer-based random assignment procedure operated successfully on a weekly basis for 17 consecutive weeks in a program serving over 360 ex-offenders. (CTM)
Descriptors: Computer Programs, Criminals, Data Collection, Field Studies
Lippey, Gerald – 1973
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…
Descriptors: Computer Oriented Programs, Computer Programs, Computers, Individual Testing
PDF pending restorationHowell, Frank M.; Parent, Dale – 1979
The User's Guide to the Regional Study of Higher Education in Agriculture and Home Economics in the South explains the purpose and organization of the study, one of three phases of a larger investigation being conducted by collaborating researchers in several Agricultural Experiment Stations. The guide provides a detailed description of the…
Descriptors: Agricultural Colleges, Agricultural Occupations, Career Choice, Computer Programs
PDF pending restorationSanford, Timothy R. – 1977
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…
Descriptors: Computer Programs, Computers, Credit Courses, Departments
