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Download full textLivingston, Samuel A.; Lewis, Charles – Educational Testing Service, 2009
This report proposes an empirical Bayes approach to the problem of equating scores on test forms taken by very small numbers of test takers. The equated score is estimated separately at each score point, making it unnecessary to model either the score distribution or the equating transformation. Prior information comes from equatings of other…
Descriptors: Test Length, Equated Scores, Bayesian Statistics, Sample Size
