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Educational and Psychological Measurement
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On the Examination of Test Unidimensionality

Jeffrey K. Smith

Rutgers, The State University

Weber (1977) contends that the use of Rasch analysis, principal components analysis, and classical test analysis shows that an in strument designed to measure a "bilevel dimensionality" in proba bility achievement (Levin, 1975) in fact measures a single latent trait. This article questions that interpretation and the use of Rasch and classical analysis to establish unidimensionality.

Educational and Psychological Measurement, Vol. 40, No. 4, 885-889 (1980)
DOI: 10.1177/001316448004000410
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Home page
 REVIEW OF RESEARCH IN EDUCATIONHome page
R. E. Traub and R. G. Wolfe
Chapter 8: Latent Trait Theories and the Assessment of Educational Achievement
Review of Research in Education, January 1, 1981; 9(1): 377 - 435.
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