title: Development of inattention, impulsivity, and processing speed as measured by the d2 Test: results of a large cross-sectional study in children aged 7-13.
abstract: The development of three aspects of selective attention was studied in 451 Dutch schoolchildren attending second to sixth grade. Selective attention was measured with the d2 Test of attention. The largest age differences were found for processing speed that continued to improve until the sixth grade. Impulsivity, as measured by the percentage of errors of commission, decreased until the fourth grade. Inattention, measured by the percentage of errors of omission, was stable in all grades. Processing speed and impulsivity were correlated with the score on the Attention Problems subscale of the Child Behavior Checklist. These results imply that selective attention continues to develop, at least, until the end of elementary school. The findings are support for a step-wise model of cognitive development (P. Anderson, 2002).
authors.affiliation: Department of Psychiatry and Neuropsychology, Maastricht University, The Netherlands. r.wassenberg@np.unimaas.nl
authors.forename: Renske
authors.initials: R
authors.lastname: Wassenberg
authors.forename: Jos G M
authors.initials: JG
authors.lastname: Hendriksen
authors.forename: Petra P M
authors.initials: PP
authors.lastname: Hurks
authors.forename: Frans J M
authors.initials: FJ
authors.lastname: Feron
authors.forename: Esther H H
authors.initials: EH
authors.lastname: Keulers
authors.forename: Johan S H
authors.initials: JS
authors.lastname: Vles
authors.forename: Jelle
authors.initials: J
authors.lastname: Jolles
mesh_terms: D000293:Adolescent; D017677:Age Distribution; D001288:Attention; D001289:Attention Deficit Disorder with Hyperactivity / Q000453:epidemiology* / Q000523:psychology; D002648:Child; D002652:Child Behavior / Q000523:psychology; D003072:Cognition Disorders / Q000453:epidemiology* / Q000523:psychology; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007175:Impulsive Behavior / Q000453:epidemiology* / Q000523:psychology; D008297:Male; D009426:Netherlands / Q000453:epidemiology; D013647:Task Performance and Analysis; D013997:Time Factors