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Do Attention Deficits Influence IQ Assessment in Children and Adolescents with ADHD?
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Jepsen, Jens Richardt M.; Fagerlund, Birgitte; Mortensen, Erik Lykke – Journal of Attention Disorders, 2009
Objective: To characterize the relationship between IQ and attention deficits in children with ADHD and to estimate the inattention-related mean influence on IQ when children are tested before stimulant drug treatment has been initiated. Method: Studies of various methodologies are reviewed. Results: Correlation studies show mostly weak…
Descriptors: Stimulants, Attention Deficit Hyperactivity Disorder, Intelligence Quotient, Drug Therapy
Twin Study on Heritability of Activity, Attention, and Impulsivity as Assessed by Objective Measures
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Heiser, Philip; Heinzel-Gutenbrunner, Monika; Frey, Joachim; Smidt, Judith; Grabarkiewicz, Justyna; Friedel, Susann; Kuhnau, Wolfgang; Schmidtke, Jorg; Remschmidt, Helmut; Hebebrand, Johannes – Journal of Attention Disorders, 2006
Objective: The purpose of this study was to assess heritability of activity, attention, and impulsivity by comparing young monozygotic (MZ) twins with dizygotic (DZ) twins using objective measures. Method: The OPTAx test is an infrared motion analysis to record the movement pattern during a continuous performance test. Seventeen MZ and 12 same…
Descriptors: Conceptual Tempo, Twins, Behavior Problems, Performance Tests