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The Psychosocial Adjustment to Illness Scale--Self-Report: factor structure and item stability
J R Rodrigue1, W F Kanasky, S I Jackson
1Department of Clinical and Health Psychology, P.O. Box 100165, University of Florida Health Science Center, Gainesville, Florida 32610-0165, USA. jrodrigu@hp.ufl.edu
Abstract:
The Psychosocial Adjustment to Illness Scale--Self-Report (PAIS-SR; Derogatis & Derogatis, 1990), a frequently used measure of adjustment in medically ill adults, was subjected to several exploratory factor analyses, with principal-axes factor extractions and varimax rotation procedures. The sample consisted of kidney, heart, liver, lung, and bone marrow transplant candidates (N = 280). The final analysis yielded a six-factor, 26-item instrument accounting for 59% of the variance. Coefficient alpha for the 26-item measure was .87, and internal consistency estimates for the factors ranged from .50 to .86. Strong correlations with other adjustment measures commonly used in the assessment of adults with chronic physical conditions support the validity of the PAIS-SR.