Table 3 Mean (M), standard deviation (SD) and effect size of the difference in parental response (online versus on paper-and-pencil) to the SDQ
Online M (SD) | Paper-and-Pencil M (SD) | Effect size of the difference (ηp2) | |
|---|---|---|---|
N = 437 | N = 946 | ||
Emotional Symptoms | 1.7 (1.8) | 1.4 (1.7) | .003 |
Hyperactivity-Inattention | 2.3 (2.1) | 2.3 (2.1) | .000 |
Peer Problems | 1.2 (1.5) | 1.2 (1.5) | .000 |
Conduct Problems | 1.0 (1.2) | 1.1 (1.3) | .001 |
Prosocial Behavior | 8.3 (1.7) | 8.5 (1.6) | .001 |
Total Difficulties | 6.2 (4.7) | 6.1 (4.8) | .000 |