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Belle, Janna; van Hulst, Branko M.; Durston, Sarah – Journal of Child Psychology and Psychiatry, 2015
Background: Intra-individual variability reflects temporal variation within an individual's performance on a cognitive task. Children with developmental disorders, such as ADHD and ASD show increased levels of intra-individual variability. In typical development, intra-individual variability decreases sharply between the ages 6 and 20. The tight…
Descriptors: Individual Differences, Attention Deficit Hyperactivity Disorder, Autism, Pervasive Developmental Disorders
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Pavuluri, Mani N.; West, Amy; Hill, Kristian; Jindal, Kittu; Sweeney, John A. – Journal of the American Academy of Child & Adolescent Psychiatry, 2009
The comparison of the neurocognitive functioning of people with pediatric bipolar disorder (PBD) with a control group shows that the developmental progress in executive functions and verbal memory of those with PBD was significantly less than those in the control group. The results were seen after comparing data from baseline cognitive tests and a…
Descriptors: Control Groups, Cognitive Tests, Cognitive Development, Depression (Psychology)
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Moll, Henrike; Tomasello, Michael – British Journal of Developmental Psychology, 2006
The current study sought to determine the age at which children first engage in Level 1 visual perspective-taking, in which they understand that the content of what another person sees in a situation may sometimes differ from what they see. An adult entered the room searching for an object. One candidate object was out in the open, whereas another…
Descriptors: Perspective Taking, Infants, Developmental Stages, Cognitive Development
Gann, Louise L.; Fowler, H. Seymour – 1981
The purpose of this study was to investigate the effect of selected science experiences on fourth-grade students' concepts of Piagetian physical causality, namely, animism and dynamism. Vocabulary ability and Piagetian developmental stages were assessed by the "Concept Assessment Kit Conservation" and "Metropolitan Achievement…
Descriptors: Cognitive Development, Concept Formation, Concept Teaching, Control Groups