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Caron, Jessica; Light, Janice; McNaughton, David – Research and Practice for Persons with Severe Disabilities, 2021
The purpose of this study was to investigate the effects of an augmentative and alternative communication (AAC) app with transition to literacy (T2L) software features (i.e., dynamic text and speech output upon selection of a graphic symbol within the grid display) on the acquisition of 12 personally relevant single words for individuals with…
Descriptors: Augmentative and Alternative Communication, Autism, Pervasive Developmental Disorders, Severe Disabilities
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Raffington, Laurel; Prindle, John J.; Shing, Yee Lee – Developmental Psychology, 2018
Alleviating disadvantage in low-income environments predicts higher cognitive abilities during early childhood. It is less established whether family income continues to predict cognitive growth in later childhood or whether there may even be bidirectional dynamics. Notably, living in poverty may moderate income-cognition dynamics. In this study,…
Descriptors: Poverty, Cognitive Development, Scores, Prediction
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Ross, Judith L.; Zeger, Martha P. D.; Kushner, Harvey; Zinn, Andrew R.; Roeltgen, David P. – Developmental Disabilities Research Reviews, 2009
Objective: The goal of this study was to contrast the cognitive phenotypes in boys with 47,XYY (XYY) karyotype and boys with 47,XXY karyotype [Klinefelter syndrome, (KS)], who share an extra copy of the X-Y pseudoautosomal region but differ in their dosage of strictly sex-linked genes. Methods: Neuropsychological evaluation of general cognitive…
Descriptors: Genetic Disorders, Males, Sex, Genetics
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Bennett, David S.; Bendersky, Margaret; Lewis, Michael – Developmental Psychology, 2008
This study examined the effects of prenatal cocaine exposure, environmental risk, and maternal verbal intelligence on children's cognitive ability. Gender and age were examined as moderators of potential cocaine exposure effects. The Stanford-Binet IV intelligence test was administered to 231 children (91 cocaine exposed, 140 unexposed) at ages 4,…
Descriptors: Cocaine, Intelligence Tests, Intelligence Quotient, Children