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Livingston, Samuel A. – Journal of Educational Measurement, 1993
The extent to which log-linear smoothing could improve the accuracy of common-item equating by the chained equipercentile method in small samples of examinees was investigated with responses from a 100-item test and 93,283 examinees. Smoothing reduced the sample size required for a given degree of accuracy. (SLD)
Descriptors: Advanced Placement Programs, Equated Scores, Estimation (Mathematics), High School Students