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Sinharay, Sandip; Puhan, Gautam; Haberman, Shelby J. – Educational Measurement: Issues and Practice, 2011
The purpose of this ITEMS module is to provide an introduction to subscores. First, examples of subscores from an operational test are provided. Then, a review of methods that can be used to examine if subscores have adequate psychometric quality is provided. It is demonstrated, using results from operational and simulated data, that subscores…
Descriptors: Scores, Psychometrics, Tests, Data
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Sinharay, Sandip; Dorans, Neil J.; Liang, Longjuan – Educational Measurement: Issues and Practice, 2011
Over the past few decades, those who take tests in the United States have exhibited increasing diversity with respect to native language. Standard psychometric procedures for ensuring item and test fairness that have existed for some time were developed when test-taking groups were predominantly native English speakers. A better understanding of…
Descriptors: Test Bias, Testing Programs, Psychometrics, Language Proficiency