| Minimum | Minimum | Standard deviation | Mean | Step | Scale | Group |
| 132 132 | 65 77 | 15.837 12.579 | 96.83 103.60 | Pre-test Post-test | Tehran-Stanford-Binet Intelligence Scale | The third grade |
| 129 131 | 75 80 | 12.37 11.84 | 104.70 110.06 | Pre-test Post-test | Wechsler intelligence | |
| 135 138 | 74 80 | 17.56 15.30 | 101.86 106.00 | Pre-test Post-test | Tehran-Stanford-Binet Intelligence Scale | The fourth grade |
| 136 138 | 83 89 | 14.50 12.77 | 106.50 111.86 | Pre-test Post-test | Wechsler intelligence | |
| 129 129 | 77 83 | 16.61 14.09 | 101.58 107.83 | Pre-test Post-test | TehranStanford-Binet Intelligence Scale | The fifth grade |
| 129 129 | 92 92 | 13.09 12.86 | 108.16 111.83 | Pre-test Post-test | Wechsler intelligence |