Open AccessMeasuring the sensitivity to change of the Role Functioning Scale through the utilization of the RC ID index
Author(s) -
Wieduwilt Kristin M.,
Jerrell Jeanette M.
Publication year - 1998
Publication title -
international journal of methods in psychiatric research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.275
H-Index - 73
eISSN - 1557-0657
pISSN - 1049-8931
DOI - 10.1002/mpr.46
Subject(s) - psychological intervention , psychosocial , clinical psychology , psychology , scale (ratio) , index (typography) , global assessment of functioning , psychiatry , schizophrenia (object oriented programming) , quantum mechanics , world wide web , computer science , physics
This study presents data on the sensitivity to change of the Role Functioning Scale (RFS) in assessing improvement in psychosocial functioning among persons with severe and persistent mental illness after exposure to different clinical interventions. The sample for this study was composed of 122 severely and persistently mentally ill clients who received outpatient services in one of three case‐management conditions as part of a randomized clinical trial. Utilizing the twofold criteria of the RC ID index proposed by Jacobson and Truax (1991) evidence was found for the sensitivity of the RFS to detect statistically reliable and clinically significant changes in client functioning as a result of the treatment interventions. The global score of the RFS demonstrated highly significant treatment effects, as well as moderate to large effect sizes. Results from the current study, as well as those presented in previous psychometric studies of the RFS indicate that this measure can be used effectively in outcome studies of the severely and persistently mentally ill to assess treatment efficacy reliably and accurately. Copyright © 1998 Whurr Publishers Ltd.