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Peer reviewedMolenaar, Peter C. M.; And Others – Psychometrika, 1992
The dynamic factor model proposed by P. C. Molenaar (1985) is exhibited, and a dynamic nonstationary factor model (DNFM) is constructed with latent factor series that have time-varying mean functions. The use of a DNFM is illustrated using data from a television viewing habits study. (SLD)
Descriptors: Algorithms, Equations (Mathematics), Estimation (Mathematics), Factor Analysis
Moreno, Kathleen E.; And Others – 1983
The relationship between selected subtests from the Armed Services Vocational Aptitude Battery (ASVAB) and corresponding subtests administered as computerized adaptive tests (CAT) was investigated using a sample of Marine recruits. Results showed that the CAT subtest scores correlated as well with initial ASVAB scores as did ASVAB retest scores,…
Descriptors: Adaptive Testing, Aptitude Tests, Computer Assisted Testing, Correlation
BALL, RACHELL S.; STOTT, LELAND H. – 1963
AN INVESTIGATION AND EVALUATION OF TOTAL INFANT AND PRESCHOOL MENTAL TESTING SITUATIONS AND SOME CONCLUSIONS AS TO THE CURRENT NEEDS IN THIS AREA ARE PRESENTED. THESE APPROACHES ARE MADE TO THE PROBLEM. FIRST, THE THEORETICAL THINKING ON THE NATURE OF INTELLIGENCE AND HOW IT DEVELOPS IN CHILDREN IS TRACED. THERE HAS BEEN DISAGREEMENT OVER THE…
Descriptors: Child Development, Factor Analysis, Intellectual Development, Intelligence Tests
