Distribution of research participants (
| School | Teaching career | |||
| Middle school | High school | 5 years or less | 6--10 years | 11 years or more |
| 38 (30.4%) | 87 (69.6%) | 46 (36.8%) | 38 (30.4%) | 41 (32.8%) |
| School type | ||||
| Middle school | General high school | Vocational school | Science core school | Science high school/Science academy |
| 38 (30.4%) | 54 (43.2%) | 7 (5.6%) | 11 (8.8%) | 15 (12.0%) |