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Table 8 Correlations between the SDQ and ADHD-RS for each rater (Spearman’s rho)

From: Normative data and psychometric properties of the strengths and difficulties questionnaire among Japanese school-aged children

ADHD-RS Parent rating (n = 41) Teacher rating (n = 43)
SDQ Inattention Hyperactivity/impulsivity Total Inattention Hyperactivity/impulsivity Total
Total difficulties score .76** .67** .77** .73** .65** .74**
Emotional symptoms .34* .33* .34* .28 .17 .26
Conduct problems .70** .70** .75** .53** .57** .60**
Hyperactivity/inattention .73** .63** .73** .83** .81** .85**
Peer problems .58** .51** .59** .36* .22 .33*
Prosocial behavior -.29 -.26 -.31* -.42** -.86** -.48**
  1. Note. SDQ, strengths and difficulties questionnaire. ADHD-RS: ADHD-Rating Scale-IV. The subsample from which parent ratings were obtained (n = 41) consisted of primary schoolchildren (25 boys, mean age 8.1 ± 1.5). The subsample from which teacher ratings were obtained (n = 43) consisted of primary schoolchildren (27 boys, mean age 8.1 ± 1.5). *p < 0.05, **p < 0.01.