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Peer reviewedKrus, David J.; Wilkinson, Sue Marie – Educational and Psychological Measurement, 1986
Matrix differencing of data vectors is introduced as a method for computing test variance and is compared to traditional analysis of variance. Applications for computer assisted instruction, provided by supplemental computer software, are also described. (Author/GDC)
Descriptors: Analysis of Variance, Comparative Analysis, Computer Software, Matrices
Peer reviewedKrus, David J.; Weiss, David J. – Multivariate Behavioral Research, 1976
Results of empirical comparisons of an inferential model of order analysis with factor analytic models were reported for two sets of data. On the prestructured data set both order and factor analytic models returned its dimensions of length, width and height, but on the random data set the factor analytic models indicated the presence of…
Descriptors: Comparative Analysis, Data Analysis, Factor Analysis, Mathematical Models
Peer reviewedKrus, David J.; Krus, Patricia H. – Educational and Psychological Measurement, 1977
Described is a Fortran computer program for an alternative algorithm for Thurstone's pair comparisons method. This algorithm provides an improved capacity for handling indeterminate proportions of one and zero as well as untruncated estimates of population scale values. (Author/JKS)
Descriptors: Algorithms, Attitude Measures, Comparative Analysis, Computer Programs
