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Download full textCook, Linda L.; And Others – 1983
The purpose of this study was to empirically examine the relationship between violations of the assumption of unidimensionality, as assessed by the factor analysis of item parcel data, and the quality of item response theory (IRT) true-score equating, as measured by score scale stability. The verbal section of the Scholastic Aptitude Test (SAT)…
Descriptors: College Entrance Examinations, Equated Scores, Factor Analysis, Latent Trait Theory
