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Psychometric assessment of the quality of life index

Ferrans, Carol Estwing, Powers, Marjorie J.·1992·Research in Nursing & Health

Abstract

The purpose of this study was to examine the psychometric properties of the Quality of Life Index (QLI) (Ferrans & Powers, 1985). The sample consisted of 349 patients selected randomly from the adult, in‐unit hemodialysis patient population of Illinois. Factor analysis was used to examine the underlying factor structure. A four‐factor solution best fit the data, indicating that there were four dimensions underlying the QLI: health and functioning, socioeconomic, psychological/spiritual, and family. Factor analysis of the four primary factors revealed one higher order factor, representing quality of life. Construct validity also was supported by the contrasted groups approach. As predicted, it was found that those who had higher incomes had significantly higher quality of life scores on the social and economic subscale. Support for convergent validity was provided by a strong correlation (r = 0.77) between scores from the QLI and an assessment of life satisfaction. Findings supported the internal consistency reliability of the entire QLI (alpha = 0.93) and the four subscales (alphas = 0.87, 0.82, 0.90, 0.77).

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Metadata

Authors
Ferrans, C. E., & Powers, M. J.
Venue
Research in Nursing & Health
Publisher
Wiley
Published
1992-02
Volume
15
Issue
1
Pages
29-38
ISSN
  • 0160-6891 (ISSN-L)
  • 1098-240X
OpenAlex
W1968897535
Cited by
834
References
26
FWCI
5.99
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Psychometric assessment of the quality of life index. https://app.cochat.ai/papers/10.1002/nur.4770150106
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Ferrans, C. E., & Powers, M. J. (1992). Psychometric assessment of the quality of life index. Research in Nursing & Health. https://doi.org/10.1002/nur.4770150106

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