Table 1: Demographic characteristics of the samples of middle school’s students (n = 216).
| 
 Demographic characteristics  | 
 Response category  | 
 No  | 
 %  | 
| 
 Age (years) 
 
 
  | 
 13  | 
 99  | 
 45.8  | 
| 
 14  | 
 86  | 
 39.8  | 
|
| 
 15  | 
 29  | 
 13.4  | 
|
| 
 16  | 
 2  | 
 0.9  | 
|
| 
 Father's education level 
 
  | 
 Pre -high school  | 
 35  | 
 16.2  | 
| 
 High school  | 
 48  | 
 22.2  | 
|
| 
 Above high school  | 
 133  | 
 61.6  | 
|
| 
 Mothers educational level 
 
  | 
 Pre -high school  | 
 55  | 
 25.5  | 
| 
 High school  | 
 41  | 
 19.0  | 
|
| 
 Above high school  | 
 120  | 
 55.6  | 
|
| 
 Monthly family income 
 
  | 
 Less than 10000 RSA  | 
 64  | 
 29.6  | 
| 
 10000-20000 RSA  | 
 101  | 
 46.8  | 
|
| 
 Above 20000 RSA  | 
 51  | 
 23.6  | 
|
| 
 Fathers employment 
  | 
 yes  | 
 187  | 
 86.6  | 
| 
 No  | 
 29  | 
 13.4  | 
|
| 
 Mothers employment 
  | 
 yes  | 
 72  | 
 33.3  | 
| 
 No  | 
 144  | 
 66.7  |