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What Are the Odds? Modern Relevance and Bayes Factor Solutions for MacAlister's Problem from the 1881 "Educational Times"
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Jamil, Tahira; Marsman, Maarten; Ly, Alexander; Morey, Richard D.; Wagenmakers, Eric-Jan – Educational and Psychological Measurement, 2017
In 1881, Donald MacAlister posed a problem in the "Educational Times" that remains relevant today. The problem centers on the statistical evidence for the effectiveness of a treatment based on a comparison between two proportions. A brief historical sketch is followed by a discussion of two default Bayesian solutions, one based on a…
Descriptors: Bayesian Statistics, Evidence, Comparative Analysis, Problem Solving
A Comparison of Two Equipercentile Equating Methods for Common Item Equating.
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Harris, Deborah J.; Kolen, Michael J. – Educational and Psychological Measurement, 1990
An Angoff method and a frequency estimation equipercentile equating method were compared, using data from three forms of a 200-item multiple-choice certification test. Data requirements are fewer and computational requirements less burdensome for the former than for the latter method. However, results of the two methods are not interchangeable.…
Descriptors: Comparative Analysis, Computation, Equated Scores, Licensing Examinations (Professions)