The analysis of Keyes' dual-factor model of mental nealth in normal population

Objective To verify the applicability of mental health dual-factor theory in normal population and understand the mental health of them. Methods According to Keyes' theory of mental health, the questionnaire was used to investigate the negative and positive psychological health of 1900 normal population. Then, confirmatory factor analysis was carried out. Result The fitting index of the dual-Factor model in Zhejiang group was more ideal by comparing the different models(χ2/df=3.63, RMR=0.04 , RMSEA=0.095). In the people of Zhejiang province, 69.8% were completely mentally healthy, 9.4% were troubled, 7.3% were vulnerable, 13.5% were symptomatic but content. The distribution results were consistent with those of foreign researches. The results between the six-point method and Keyes’ method were significantly different(χ2 =187.5, P<0.01). In this study, a combination of PHQ-9, GAD-7 and GHQ-12 was used in the study, and 22.9% of the population were screened for mental illness. Conclusion The dual-Factor model of mental health is suitable for normal population. Mental health can be assessed by warwick-edinburgh mental well-being scale(WEMWBS), PHQ-9, GAD-7 and GHQ-12. Key words: Positive psychology; Mental disorder; Mental health; Dual-Factor model