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Groen-Blokhuis, Maria M.; Middeldorp, Christel M.; van Beijsterveldt, Catharina E. M.; Boomsma, Dorret I. – Journal of the American Academy of Child & Adolescent Psychiatry, 2011
Objective: Low birth weight (LBW) is associated with attention problems (AP) and attention-deficit/hyperactivity disorder (ADHD). The etiology of this association is unclear. We investigate whether there is a causal influence of birth weight (BW) on AP and whether the BW effect is mediated by catch-up growth (CUG) in low-BW children. Method:…
Descriptors: Attention Deficit Hyperactivity Disorder, Twins, Body Weight, Etiology
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Metcalfe, Lindsay A.; Harvey, Elizabeth A.; Laws, Holly B. – Journal of Educational Psychology, 2013
Existing research suggests that there is a relation between academic/cognitive deficits and externalizing behavior in young children, but the direction of this relation is unclear. The present study tested competing models of the relation between academic/cognitive functioning and behavior problems during early childhood. Participants were 221…
Descriptors: Longitudinal Studies, Cognitive Ability, Academic Ability, Behavior Problems