A four-page-long questionnaire was developed and distributed to the 4th batch of Indonesian candidates, who wished to go to Japan under the above agreement, at the venue of intensive Japanese language course held in Depok, West Jawa, Indonesia, in July 2011.
Seventy-three percent of the respondents were females. The average age was 24.7 (SD2.8) years old. Forty-nine percent of the respondents answered that they were very worried about the aftermath of the Great East Japan Earthquake. The mean score of the Knowledge about Japan, including knowledge about the working and living environments in Japan was 53.3 and ranged from 20 to 80, (SD 7.3) points. The average score of the General Health Questionnaire, which was used as a marker of the mental health status in this study, was 36.1 (SD4.2) points.
The result of a multivariate analysis showed that the Score of Knowledge about Japan was significantly correlated to the GHQ score (β=-.234,p<0.05), but the degree of worry about the earthquake did not. The result indicated that knowledge about the actual living and working condition in Japan is a major indicator of the mental health of the candidates, but not their worry concerning the earthquake.