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| Applied Psychological… | 2 |
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Peer reviewedLumsden, James – Applied Psychological Measurement, 1980
A test theory model based on the Thurstone judgmental model is described. By restricting various parameters of the model, 3 Rasch models, 2 pseudo-Rasch models, 3 two-parameter models, and a Weber's Law model are derived. (Author/CTM)
Descriptors: Latent Trait Theory, Mathematical Models, Scaling, Test Items
Peer reviewedLinn, Robert L.; Slinde, Jeffrey A. – Applied Psychological Measurement, 1979
This study investigated the adequacy of the Rasch model in equating existing standardized tests with groups of examinees not widely separated in ability. With the exception of one test pair and one grade level, the Rasch model using the anchor test procedure provided a reasonably satisfactory means of equating. (Author/CTM)
Descriptors: Equated Scores, Goodness of Fit, Intermediate Grades, Item Analysis
