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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
Psychological Assessment
|January 9, 2001
Summary
This study validated the Psychosocial Adjustment to Illness Scale--Self-Report (PAIS-SR) for medically ill adults. The refined 26-item scale effectively measures psychosocial adjustment in patients with chronic physical conditions.
Area of Science:
- Psychology
- Medical Sociology
- Health Psychology
Background:
- The Psychosocial Adjustment to Illness Scale--Self-Report (PAIS-SR) is widely used for assessing adjustment in medically ill adults.
- Validation of existing psychometric instruments is crucial for reliable patient assessment.
Purpose of the Study:
- To conduct exploratory factor analyses on the PAIS-SR to refine its structure.
- To confirm the psychometric properties and validity of a revised PAIS-SR instrument.
Main Methods:
- Exploratory factor analysis using principal-axes extractions and varimax rotation.
- The study sample comprised 280 adult candidates for kidney, heart, liver, lung, and bone marrow transplantation.
- Internal consistency was assessed using Cronbach's alpha and factor-based estimates.
Main Results:
- A six-factor, 26-item version of the PAIS-SR was identified, explaining 59% of the variance.
- The overall 26-item measure demonstrated strong internal consistency (Cronbach's alpha = .87).
- Internal consistency for the identified factors ranged from .50 to .86.
Conclusions:
- The refined 26-item PAIS-SR is a psychometrically sound instrument for assessing psychosocial adjustment in medically ill adults.
- The scale's strong correlations with other adjustment measures support its validity in chronic physical conditions.
- This validated instrument aids in understanding and supporting patient adaptation to illness.