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Construct validation of the Greek SF-36 Health Survey
Fotios Anagnostopoulos1, Dimitris Niakas, Evelina Pappa
1Psychology Department, Panteion University, 136 Syngrou Avenue, 176-71 Athens, Greece. fganagn@hol.gr
Objective:
To test the construct validity of the Short-Form 36 (SF-36) Health Survey, using structural equation modeling (SEM).
Methods:
Cross-sectional survey was conducted. Data were collected from 1007 participants in a stratified sample of adult general population, interviewed face-to-face by trained interviewers.
Results:
SEM analyses supported the superiority of the eight first-order factor model of health. Higher-order analyses suggested that a model with three correlated second-order factors (physical health, general well-being, general mental health) and one third-order factor (health) provided a satisfactory fit to the data.
Conclusions:
These results confirm the multidimensional structure of the SF-36 and underscore the feasibility of multinational comparisons of health status using this instrument. They also support the use of eight subscale scores in parallel with three second-order summary scores rather than one overall score.
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