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. 2013 Jan;38(1):22-6.
doi: 10.4103/0970-0218.106623.

Validity and Reliability of MOS Short Form Health Survey (SF-36) for Use in India

Richa Sinha  1 , Wim J A van den Heuvel, Perianayagam Arokiasamy
Affiliations

Validity and Reliability of MOS Short Form Health Survey (SF-36) for Use in India

Richa Sinha et al. Indian J Community Med. 2013 Jan.

Abstract

Background: Health is defined as the state of complete physical, mental and social well-being than just the absence of disease or infirmity. In order to measure health in the community, a reliable and validated instrument is required.

Objectives: To adapt and translate the Medical Outcomes Study Short-Form Health Survey (SF-36) for use in India, to study its validity and reliability and to explore its higher order factor structure.

Materials and methods: Face-to-face interviews were conducted in 184 adult subjects by two trained interviewers. Statistical analyses for establishing item-level validity, scale-level validity and reliability and tests of known group comparison were performed. The higher order factor structure was investigated using principal component analysis with varimax rotation.

Results: The questionnaire was well understood by the respondents. Item-level validity was established using tests of item internal consistency, equality of item-scale correlations and item-discriminant validity. Tests of scale-level validity and reliability performed well as all the scales met the required internal consistency criteria. Tests of known group comparison discriminated well across groups differing in socio-demographic and clinical variables. The higher order factor structure was found to comprise of two factors, with factor loadings being similar to those observed in other Asian countries.

Conclusion: The item-and scale-level statistical analyses supported the validity and reliability of SF-36 for use in India.

Keywords: Health surveys; quality of life; questionnaires; reliability; translations; validity.

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Conflict of interest statement

Conflict of Interest: None declared.

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