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Download full textPuhan, Gautam – Educational Testing Service, 2011
The study evaluated the effectiveness of log-linear presmoothing (Holland & Thayer, 1987) on the accuracy of small sample chained equipercentile equatings under two conditions (i.e., using small samples that differed randomly in ability from the target population "versus" using small samples that were distinctly different from the…
Descriptors: Equated Scores, Data Analysis, Accuracy, Sample Size
Tan, Xuan; Ricker, Kathryn L.; Puhan, Gautam – Educational Testing Service, 2010
This study examines the differences in equating outcomes between two trend score equating designs resulting from two different scoring strategies for trend scoring when operational constructed-response (CR) items are double-scored--the single group (SG) design, where each trend CR item is double-scored, and the nonequivalent groups with anchor…
Descriptors: Equated Scores, Scoring, Responses, Test Items
