“…These authors assert that although the benefits of using one instrument with all upper-extremity conditions may be appealing, disease-specific scales are more responsive. For example, much evidence suggests that the Boston questionnaire (Levine et al, 1993) is more responsive to changes in carpal tunnel syndrome than are global assessments Atroshi, Gummesson, Andersson, Dahlgren, & Johansson, 2000;Heybeli, Kutluhan, Demirci, Kerman, & Mumcu, 2002;Mondelli, Reale, Sicurelli, & Padua, 2000). Global assessments may be compounded by various factors and, hence, may fail to measure a single underlying trait.…”