Article

OBJECTIVE: To develop and evaluate the psychometric properties of an item set
measuring economic quality of life (QOL) for use by individuals with
disabilities. DESIGN: Survey. SETTING: Community settings. PARTICIPANTS:
Individuals with disabilities completed individual interviews (n=64),
participated in focus groups (n=172), and completed cognitive interviews (n=15).
Inclusion criteria included the following: traumatic brain injury, spinal cord
injury, or stroke; age >/=18 years; and ability to read and speak English. We
calibrated the items with 305 former rehabilitation inpatients. INTERVENTIONS:
None. MAIN OUTCOME MEASURE: Economic QOL. RESULTS: Confirmatory factor analysis
showed acceptable fit indices (comparative fit index=.939, root mean square error
of approximation=.089) for the 37 items. However, 3 items demonstrated local item
dependence. Dropping 9 items improved fit and obviated local dependence. Rasch
analysis of the remaining 28 items yielded a person reliability of .92,
suggesting that these items discriminate about 4 economic QOL levels.
CONCLUSIONS: We developed a 28-item bank that measures economic aspects of QOL.
Preliminary confirmatory factor analysis and Rasch analysis results support the
psychometric properties of this new measure. It fills a gap in health-related QOL
measurement by describing the economic barriers and facilitators of community
participation. Future development will make the item bank available as a computer
adaptive test.
CI - Copyright (c) 2015 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS