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Lord, Frederic M.1
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Power Scores Estimated by Item Characteristic Curves.
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Lord, Frederic M. – 1972
A method for estimating power scores is described. By way of illustration, it is applied to 21 students who were improperly timed on a standard test. Some empirical results are given in support of the estimation procedure. (Author)
Descriptors: Bulletins, Mathematical Models, Probability, Research
Stochastic Processes as True-Score Models for Highly Speeded Mental Tests.
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Moore, William E. – 1970
The previous theoretical development of the Poisson process as a strong model for the true-score theory of mental tests is discussed, and additional theoretical properties of the model from the standpoint of individual examinees are developed. The paper introduces the Erlang process as a family of test theory models and shows in the context of…
Descriptors: Arithmetic, Goodness of Fit, Grade 10, Mathematical Models