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| Gustafsson, Jan-Eric | 1 |
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Download full textGustafsson, Jan-Eric – 1980
Some basic concepts of the one-parameter logistic latent-trait model, or the Rasch model, are presented. This model assumes that the probability of a correct answer to an item is a function of two parameters, one representing the difficulty of the item and one representing the ability of the subject. The purpose of this paper is to explain a…
Descriptors: Academic Ability, Academic Achievement, Difficulty Level, Latent Trait Theory
