| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. control | 1575 | 
                                    
                                    34.7%
                                 | 
| 1 | 1. training | 983 | 
                                    
                                    21.7%
                                 | 
| 2 | 2. coaching | 981 | 
                                    
                                    21.6%
                                 | 
| 3 | 3. parents | 999 | 
                                    
                                    22%
                                 |