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Linn Andersson Konke; Terje Falck-Ytter; Emily J. H. Jones; Amy Goodwin; Karin Brocki – Journal of Autism and Developmental Disorders, 2024
The purpose of the current study was to use the infant sibling design to explore whether proband traits of autism and ADHD could provide information about their infant sibling's temperament. This could help us to gain information about the extent to which infant temperament traits are differentially associated with autism and ADHD traits. We used…
Descriptors: Siblings, Birth Order, Autism Spectrum Disorders, Attention Deficit Hyperactivity Disorder
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Silles, Mary A. – Economics of Education Review, 2010
This article, using longitudinal data from the National Child Development Study, presents new evidence on the effects of family size and birth order on test scores and behavioral development at age 7, 11 and 16. Sibling size is shown to have an adverse causal effect on test scores and behavioral development. For any given family size, first-borns…
Descriptors: Family Size, Birth Order, Scores, Child Development
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Barksdale, Crystal L.; Azur, Melissa; Daniels, Amy M. – Journal of Emotional and Behavioral Disorders, 2010
Behavioral and emotional strengths are important to consider when understanding youth mental health and treatment. This study examined the association between youth strengths and functional impairment and whether this association is modified by race/ethnicity. Multinomial logistic regression models were used to estimate the effects of strengths on…
Descriptors: Ethnicity, Race, American Indians, Mental Health
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Shayer, M. – British Journal of Educational Psychology, 1979
The relation between Piaget's logical theory of formal operational thinking and his account of cognitive development is discussed. Formal operational thinking was found to be a unitary construct, and both heterogeneity of performance and decalage were found to be smaller than a recent review had suggested. (Author/KC)
Descriptors: Adolescents, Behavior Development, Cognitive Development, Cognitive Processes
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DiBlasio, Frederick A. – Journal of Youth and Adolescence, 1986
A social-learning model was tested for its ability to explain why adolescents drive under the influence of alcohol and ride with drinking drivers. The study demonstrates that if adolescent drinking and driving is to be prevented, careful attention must be prevented, careful attention must be paid to ways that it is learned and maintained.…
Descriptors: Adolescents, Behavior Development, Correlation, Drinking
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Engels, Rutger C. M. E.; Vitaro, Frank; Blokland, Endy Den Exter; de Kemp, Raymond; Scholte, Ron H. J. – Journal of Adolescence, 2004
Concerning the role of parental smoking on development of adolescent smoking, most studies have exclusively focused on the direct effects of parents' smoking on youths' smoking. However, parental smoking may also play an indirect role by affecting youths' susceptibility to peer influences and by affecting friendship selection. Data were from a…
Descriptors: Adolescents, Friendship, Smoking, Peer Influence