Table 2.
Posttest group means (with SD) in WM, their gains from pretest to posttest, and the group difference in each gain.
| Control group (n = 43) |
Interpreting group (n = 48) |
Group difference in each gain |
|||||
|---|---|---|---|---|---|---|---|
| Posttest mean | Gain | Posttest mean | Gain | t-value | p-value | Effect size d | |
| L2 listening span | 27.97 (7.68) | 1.77 (5.37) | 29.75 (6.29) | 3.65 (5.49) | -1.645 | 0.103 | -0.35 |
| Letter running span | 23.27 (5.19) | -0.33 (5.44) | 23.20 (4.99) | 0.82 (4.96) | -1.062 | 0.291 | -0.22 |
| 2-back: RT | 841.74 (261.17) | -1.32 (225.44) | 766.15 (217.20) | -104.77 (206.17) | 2.287 | 0.025 | 0.48 |
| 2-back: accuracy | 0.88 (0.087) | 0.03 (0.072) | 0.90 (0.069) | 0.06 (0.076) | -1.450 | 0.151 | -0.31 |
| CI performance | 85.40 (6.21) | ||||||