NP3 AN ITEM ANALYSIS OF THE 24 HOUR HEADACHE DISABILITY QUESTIONNAIRE (DISQ-24) USING CLASSICAL TEST THEORY AND ITEM RESPONSE THEORY METHODS
May 1, 2002, 00:00 AM
10.1016/S1098-3015(10)60859-5
https://www.valueinhealthjournal.com/article/S1098-3015(10)60859-5/fulltext
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47
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