Method
1. Participants
The participants of this study were 474 teachers from 66 schools under the Thai Office of Basic
Education. Purposive sampling technique was adopted in selecting the participants from 5 Thailand
provincial areas, including 219 participants from the Central region, 43 participants from the Eastern
region, 115 participants from the far Eastern region, 46 participants from the Northern region and 53
participants from the Southern region.