Applying Item Response Theory Methods to Improve the Measurement of Fatigue in a Clinical Trial of R

来源 :风湿病与自身免疫疾病期刊(英文) | 被引量 : 0次 | 上传用户:ljj3061105011
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Background: Many clinical trials include multiple patient-reported outcomes (PROs) to measure fatigue as secondary or exploratory endpoints of treatment effectiveness. Often, these instruments have overlapping content. The objective of this study was to c
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