Testing item response theory invariance of the standardized Quality-of-life Disease Impact Scale (QDIS®) in acute coronary syndrome patients: differential functioning of items and test

Springer, Quality of Life Research, 8(24), p. 1809-1822, 2015

Journal article published in 2015 by Nina Deng, Milena D. Anatchkova, Molly E. Waring

, Kyung T. Han, John E. Ware

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