Table 7 Maths fluency: addition and subtraction scores at baseline and follow-up in the intervention and control group
|  | Intervention (n = 57) | Control (n = 53) | Difference between groups for the change | |||||
|---|---|---|---|---|---|---|---|---|
Baseline Mean (SD) | Follow-up Mean (SD) | Within group change Mean; d | Baseline Mean (SD) | Follow-up Mean (SD) | Within group change Mean; d | Mean (95% CI) | d | |
Addition | 8.8 (5.0) | 12.4 (5.9) | 3.6; 1.0 | 8.2 (4.4) | 10.8 (5.5) | 2.6; 0.8 | 1.0 (− 0.3, 2.3) | 0.3 |
Subtraction | 5.9 (4.4) | 9.3 (4.3) | 3.4; 1.2 | 4.2 (3.3) | 7.3 (4.3) | 3.1; 0.9 | 0.3 (− 0.9, 1.5) | 0.1 |