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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

From: Psychometric properties of online administered parental strengths and difficulties questionnaire (SDQ), and normative data based on combined online and paper-and-pencil administration

 

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