A lengthy questionnaire is not always desirable, impacting on use by patients and clinicians. Clear instructions for use, acceptable time to complete (average 10 min), and free access meet many characteristics of a desirable scale
A lengthy questionnaire is not always desirable, impactingon use by patients and clinicians. Clear instructions foruse, acceptable time to complete (average 10 min), andfree access meet many characteristics of a desirablescale