Part 3: the General Health Questionnaire (Thai GHQ 28) is one of the most widelyaccepted mental health screening instruments available in more than 36 languages.The Thai GHQ 28 is an acceptable screening test for mental health problems in thecommunity with Cronbach’s α coefficient between 0.84 and 0.94 in previous studieswith the Thai population[21]. Cronbach’s α coefficient for this study was found to be0.90. The Thai GHQ 28 assessed the health status in the past 2-3 weeks; a score of6 points or more is considered to be abnormal mental health. The Thai GHQ 28 isdivided into four symptom areas: somatic symptoms; anxiety and insomnia; socialdysfunction; and severe depression.