Table 3.
Individual Item Fit Statistics and Differential Item Functioning (DIF) for Rasch-Refined Upper Extremity Functional Indexa
Items are arranged most to least difficult, top to bottom. Items deleted in the following order of most to least misfit: (P) sleeping, (B) usual hobbies/recreational or sporting activities, (S) throwing a ball, (J) dressing, (O) tying or lacing shoes. SE=standard error.
b Significant at P<.05 (Bonferroni adjusted).