Journal
BRITISH JOURNAL OF DEVELOPMENTAL PSYCHOLOGY
Volume 27, Issue -, Pages 365-383Publisher
WILEY
DOI: 10.1348/026151008X314919
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Funding
- NIMH NIH HHS [5 R03 MH50940-02, R01 MH058354-04, R01 MH058354, R01 MH058354-02, F31 MH068953, R01 MH058354-08, R01 MH058354-05, K02 MH001114, K02 MH001114-08, R01 MH058354-07, R01 MH058354-06A2, R01 MH058354-03, R01 MH058354-01A2, R01 MH058354-04S1] Funding Source: Medline
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Behavioural performance in the Go/NoGo task was compared with caregiver and teacher reports of inattention and hyperactivity-impulsivity in 1,151 children (N = 557 boys; N 594 girls) age 9-10 years old. Errors of commission (NoGo errors) were significantly correlated with symptom counts of hyperactivity-impulsivity, while errors of omission (Go errors) were significantly correlated with symptom counts for inattention in both caregiver and teacher reports. Cross-correlations were also evident, however, such that errors of commission were related to inattention symptoms, and errors of omission were related to hyperactivity-impulsivity. Moreover, hyperactivity-impulsivity and inattention symptoms were highly intercorrelated in both caregiver (r = .52) and teacher reports (r = .70), while errors of commission and omission were virtually uncorrelated in the Go/NoGo task (r = .06). The results highlight the difficulty in disentangling hyperactivity-impulsivity and inattention in questionnaires, and suggest that these constructs may be more clearly distinguished in laboratory measures such as the Go/NoGo task.
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