Table 3.
Paired sample t-tests of pretest to post-test change by group.
| In-Person | Remote | |||||||
|---|---|---|---|---|---|---|---|---|
| WJ4 | Pre (SD) | Post (SD) | p | d | Pre (SD) | Post (SD) | p | d |
| IQ | 92.9 (16.2) |
104.7 (16.8) |
0.000 | 1.19 | 90.9 (16.6) |
100.9 (16.1) |
0.000 | 1.07 |
| WM | 94.6 (15.8) |
104.6 (15.4) |
0.000 | 0.69 | 92.8 (16.8) |
100.9 (16.3) |
0.000 | 0.51 |
| LTM | 99.4 (12.7) |
108.2 (13.5) |
0.000 | 0.78 | 98.9 (12.9) |
107.1 (14.4) |
0.000 | 0.77 |
| PS | 93.2 (14.0) |
100.8 (12.5) |
0.000 | 0.74 | 91.9 (15.2) |
98.4 (15.2) |
0.000 | 0.54 |
| VP | 100.9 (13.8) |
108.4 (13.7) |
0.000 | 0.63 | 99.2 (14.3) |
105.9 (14.1) |
0.000 | 0.60 |
| AP | 89.2 (15.8) |
104.1 (15.2) |
0.000 | 1.23 | 88.1 (16.3) |
100.3 (15.6) |
0.000 | 1.07 |
| Attn | 92.1 (13.5) |
103.6 (14.3) |
0.000 | 0.95 | 92.1 (14.3) |
101.2 (13.7) |
0.000 | 0.79 |
| FR | 100.6 (16.2) |
110.6 (16.6) |
0.000 | 0.93 | 98.1 (17.2) |
107.9 (17.4) |
0.000 | 0.84 |
Significance level set at Bonferroni-corrected alpha p < 0.006. d, Cohen's d effect size; WM, working memory; LTM, long-term memory; PS, processing speed; VP, visual processing; AP, auditory processing; Attn, sustained attention; FR, fluid reasoning; IQ, IQ score composite.