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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