From: The effects of background white noise on memory performance in inattentive school children
Cognitive and behavioral measures |
Attentive group N = 41 (20 boys, 21 girls) |
Inattentive group N = 10 (5 boys, 5 girls) | Attentive vs. Inattentive | ||
---|---|---|---|---|---|
Mean SD | Range | Mean SD | Range | t-test score | |
Inattention (1 = low, 7 = high) | 2.8 (1.6) | 1 - 7 | 6.2 (0.4) | 1 - 7 | t(49) = 6.67*** |
Hyperactivity (1 = low, 7 = high) | 2.5 (1.6) | 1 - 7 | 4.9 (2.0) | 1 - 7 | t(49) = 4.11*** |
School performance (1 = below, 2 = average, 3 = above) | 2.3 (0.7) | 1 - 3 | 2.1 (0.7) | 1 - 3 | t(49) = 0.94 |
Reading skill (1 = low, 7 = high) | 5.0 (2.0) | 1 - 7 | 3.5 (1.7) | 1 - 7 | t(49) = 2.38* |
Raven score | 41.2 (8.6) | 16 - 55 | 37.3 (10.6) | 19 - 53 | t(49) = 1.09 |
Digits forward | 23.1 (9.1) | 4 - 42 | 15.0 (6.6) | 4 - 23 | t(49) = 3.22** |
Digits backwards | 14.9 (6.9) | 2 - 34 | 13.2 (4.2) | 7 - 18 | t(49) = 0.97 |