Table 1 participants characteristics (n = 326)
Characteristic | Â |
|---|---|
Age (M (SD)) | 14.84 (1.78) |
Gender (n (%)) | |
 Male | 159 (48.8%) |
 Female | 167 (51.2%) |
Grade (n (%)) | |
 Seventh | 63 (19.3%) |
 Eighth | 51 (15.6%) |
 Ninth | 48 (14.7%) |
 Tenth | 53 (16.3%) |
 Eleventh | 62 (19.0%) |
 Twelfth | 49 (15.1%) |
Grade by age group (years) equivalent | |
 Seventh | 12 |
 Eighth | 13 |
 Ninth | 14 |
 Tenth | 15 |
 Eleventh | 16 |
 Twelfth | 17 |