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The Nature of Objectivity with the Rasch Model
Peer reviewed Peer reviewed
Whitely, Susan E.; Dawis, Rene V. – Journal of Educational Measurement, 1974
Descriptors: Error of Measurement, Item Analysis, Matrices, Measurement Techniques
Estimating Measurement Error on Highly Speeded Tests.
Peer reviewed Peer reviewed
Whitely, Susan E. – Applied Psychological Measurement, 1979
A model which gives maximum likelihood estimates of measurement error within the context of a simplex model for practice effects is presented. The appropriateness of the model is tested for five traits, and error estimates are compared to the classical formula estimates. (Author/JKS)
Descriptors: Error of Measurement, Error Patterns, Higher Education, Mathematical Models
Models, Meanings and Misunderstandings: Some Issues in Applying Rasch's Theory
Peer reviewed Peer reviewed
Whitely, Susan E. – Journal of Educational Measurement, 1977
A debate concerning specific issues and the general usefulness of the Rasch latent trait test model is continued. Methods of estimation, necessary sample size, and the applicability of the model are discussed. (JKS)
Descriptors: Error of Measurement, Item Analysis, Mathematical Models, Measurement
Individual Inconsistency: Implications for Test Reliability and Behavioral Predictability.
Peer reviewed Peer reviewed
Whitely, Susan E. – Applied Psychological Measurement, 1979
Two sources of inconsistency were separated by reanalyzing data from a major study on short-term consistency. Little evidence was found for generalizability or behavioral predictability. Results supported the assumption that measurement error from short-term fluctuations is not due to systematic individual differences in response consistency.…
Descriptors: Behavior Change, Cognitive Processes, College Freshmen, Error of Measurement