| Intervention | Kolmogorov-Smirnov | |||
| Statistic | df | Sig. | ||
| Productive_immediate | Reading | 0.141 | 16 | 0.200* |
| Gap-filling | 0.164 | 18 | 0.200* | |
| Writing | 0.188 | 18 | 0.092 | |
| Receptive_immediate | Reading | 0.190 | 16 | 0.125 |
| Gap-filling | 0.262 | 18 | 0.002 | |
| Writing | 0.281 | 18 | 0.001 | |