Table 2.
Whole sample and age groups’ performance on math tests. Mean of raw scores (standard deviation in parenthesis) for the math fluency, multiplication skill and subtraction skill tests at each time point, and gains (T2-T1), for the whole sample (n = 50) and for the groups of younger (n = 25) and older (n = 25) children.
| Whole sample | Younger | Older | |
|---|---|---|---|
| Math fluency raw T1 | 61 (2.3) | 51.2 (18.5) | 70.8 (23.7)* |
| Math fluency raw T2 | 80.4 (25.5) | 70.8 (19.4) | 90.0 (27.6)* |
| Gains math fluency (T2-T1) | 19.4 (14.0) | 19.6 (15.7) | 19.2 (12.4) |
| Multiplication raw T1 | 11.1 (5.9) | 7.8 (5.4) | 14.4 (4.3)* |
| Multiplication raw T2 | 12.7 (5.9) | 12.4 (5.8) | 13.0 (6.3) |
| Multiplication gains (T2-T1) | 1.6 (6.1) | 4.6 (5.7) | −1.4 (5.1)* |
| Subtraction raw T1 | 14.1 (4.7) | 11.8 (4.6) | 16.4 (3.6)* |
| Subtraction raw T2 | 16.3 (4.2) | 16.0 (4.7) | 16.6 (3.6) |
| Subtraction gains (T2-T1) | 2.2 (3.8) | 4.2 (3.5) | 0.2 (2.9)* |
Note. T1: Time 1; T2: Time 2. (*) Indicate significant differences between younger and older groups at p < .005.