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01-12-2014 | Brief Communication | Uitgave 10/2014

Quality of Life Research 10/2014

Validation of the MOS Social Support Survey 6-item (MOS-SSS-6) measure with two large population-based samples of Australian women

Tijdschrift:
Quality of Life Research > Uitgave 10/2014
Auteurs:
Libby Holden, Christina Lee, Richard Hockey, Robert S. Ware, Annette J. Dobson

Abstract

Purpose

This study aimed to validate a 6-item 1-factor global measure of social support developed from the Medical Outcomes Study Social Support Survey (MOS-SSS) for use in large epidemiological studies.

Methods

Data were obtained from two large population-based samples of participants in the Australian Longitudinal Study on Women’s Health. The two cohorts were aged 53–58 and 28–33 years at data collection (N = 10,616 and 8,977, respectively). Items selected for the 6-item 1-factor measure were derived from the factor structure obtained from unpublished work using an earlier wave of data from one of these cohorts. Descriptive statistics, including polychoric correlations, were used to describe the abbreviated scale. Cronbach’s alpha was used to assess internal consistency and confirmatory factor analysis to assess scale validity. Concurrent validity was assessed using correlations between the new 6-item version and established 19-item version, and other concurrent variables.

Results

In both cohorts, the new 6-item 1-factor measure showed strong internal consistency and scale reliability. It had excellent goodness-of-fit indices, similar to those of the established 19-item measure. Both versions correlated similarly with concurrent measures.

Conclusion

The 6-item 1-factor MOS-SSS measures global functional social support with fewer items than the established 19-item measure.

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