Abstract
The purpose of this present study was to evaluate the construct validity of a questionnaire. To diagnose periodontal disease comprehensively at a worksite, a questionnaire (FSPD-34) was developed based on the PRECEDE-PROCEED model. The questionnaire consisted of multi-factorial sub-scales that were mutually related to each other. Subjects of this study were 324 factory workers aged from those in their 20 s to those in their 60 s who completed the questionnaire. The data were analyzed using covariance structure analysis. Covariance structure analysis used the linear structural relationship system (LISREL), using the method of maximum likelihood analysis. As a result of LISREL, Goodness of Fit Index was 0.824, and causal coefficients showed remarkably that latent variables as constructs were mutually related to each other. The results of this study suggest that a construct of FSPD-34 was suitable for the PRECEDE-PROCEED model and reliable for diagnosis of peridontal disease at a worksite.
