Table 2.
Changes in cognitive function in the metamemory training (MMT) and control groups.
| Cognitive function (measures) | MMT group (n=29) | Paired t test | Control group (n=31) | Paired t test | ||||||||||
|
|
|
Pre, mean (SD) | Post, mean (SD) | MDa (95% CI) | MMT group (db 1) | Control group (P value 1) | Pre, mean (SD) | Post, mean (SD) | MD (95% CI) | MMT group (d 2) | Control group (P value 2) | |||
| Verbal memory | ||||||||||||||
|
|
Learning | 22.03 (4.49) | 22.00 (2.45) | 0.03 (–1.87 to 1.94) | .01 | .97 | 23.23 (1.43) | 23.45 (1.18) | –0.23 (–0.89 to 0.44) | .12 | .52 | |||
|
|
Delayed cued recall | 12.21 (4.47) | 15.34 (3.71) | –3.14 (–5.3 to –0.98) | .84 | <.001 | 13.00 (3.92) | 13.35 (3.73) | –0.36 (–2.3 to 1.59) | .09 | .62 | |||
| Attention/executive functions | ||||||||||||||
|
|
Digit span forward | 5.97 (1.64) | 7.24 (2.26) | –1.28 (–2.32 to –0.24) | .50 | .01 | 6.65 (1.58) | 6.68 (1.11) | –0.03 (–0.73 to 0.66) | .02 | .90 | |||
|
|
Digit span backward | 3.41 (1.38) | 4.55 (1.38) | –1.14 (–1.86 to –0.41) | .84 | <.001 | 3.70 (1.32) | 3.84 (1.34) | –0.1 (–0.77 to 0.58) | .08 | .69 | |||
| Language | ||||||||||||||
|
|
Fluency | 15.76 (3.90) | 18.86 (4.35) | –3.10 (–5.28 to –0.93) | .85 | <.001 | 18.03 (4.50) | 17.55 (5.00) | 0.48 (–1.93 to 2.90) | .12 | .51 | |||
aMD: mean difference.
bCohen d.