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词汇 Item analysis
分类 英语词汇 英语翻译词典
释义

Item analysis

英语百科

Item analysis

Within psychometrics, Item analysis refers to statistical methods used for selecting items for inclusion in a psychological test. The concept goes back at least to Guildford (1936). The process of item analysis varies depending on the psychometric model adopted; for example classical test theory or the Rasch model will call for different procedures. In all cases, however, the purpose of item analysis is to produce a relatively short list of items (that is, questions to be included in an interview or questionnaire) that constitute a pure but comprehensive test of one or a few psychological constructs.

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