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Kaiser, Henry F.; Hunka, Steve – Educational and Psychological Measurement, 1973
Authors conclude that, in the world of real data sample correlation matrices, Guttman's stronger lower bound is not of practical use in determining the effective number of common factors. (Authors/CB)
Descriptors: Factor Analysis, Factor Structure, Item Sampling, Mathematical Applications

Claudy, John G. – Educational and Psychological Measurement, 1972
First purpose of this study was to investigate empirically the accuracy of prediction using regression weights selected through the use of variance-reduction procedures. (Author)
Descriptors: Comparative Analysis, Error Patterns, Factor Structure, Item Sampling