Reliability and validity of the SF-12 health survey among people with severe mental illness

Med Care. 2000 Nov;38(11):1141-50. doi: 10.1097/00005650-200011000-00008.


Objective: The objective of this work was to assess the reliability and validity of the Medical Outcomes Study Short-Form 12-Item Health Survey (SF-12) in a large sample of people with severe mental illness (SMI).

Methods: We examined the internal factor structure of the SF-12, compared component scores for this sample with normative levels, examined test-retest reliability, and examined convergent and divergent validity by comparing SF-12 scores to other indexes of physical and mental health.

Results: The SF-12 distinguished this sample of people with SMI from the general population, was stable over a 1-week interval, consisted of 2 fairly distinct factors, and was related to physical and mental health indexes in expected ways.

Conclusions: The SF-12 appears to be a psychometrically sound instrument for measuring health-related quality of life for people with SMI.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.
  • Research Support, U.S. Gov't, P.H.S.
  • Validation Study

MeSH terms

  • Adult
  • Connecticut
  • Factor Analysis, Statistical
  • Female
  • Health Status*
  • Health Surveys*
  • Humans
  • Male
  • Maryland
  • Mental Health*
  • Middle Aged
  • New Hampshire
  • North Carolina
  • Psychiatric Status Rating Scales / standards*
  • Psychometrics
  • Psychotic Disorders / psychology*
  • Quality of Life*
  • Severity of Illness Index