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Direct linkDeater-Deckard, Kirby – International Journal of Behavioral Development, 2016
Most of the individual difference variance in the population is found "within" families, yet studying the processes causing this variation is difficult due to confounds between genetic and nongenetic influences. Quasi-experiments can be used to test hypotheses regarding environment exposure (e.g., timing, duration) while controlling for…
Descriptors: Quasiexperimental Design, Genetics, Short Term Memory, Individual Differences
Rao, Patricia A.; Landa, Rebecca J. – Autism: The International Journal of Research and Practice, 2014
Autism spectrum disorder and attention deficit hyperactivity disorder are neurodevelopmental disorders that cannot be codiagnosed under existing diagnostic guidelines ("Diagnostic and Statistical Manual of the American Psychiatric Association," 4th ed., text rev.). However, reports are emerging that attention deficit hyperactivity…
Descriptors: Pervasive Developmental Disorders, Autism, Attention Deficit Hyperactivity Disorder, Comorbidity
Chuthapisith, Jariya; Ruangdaraganon, Nichara; Sombuntham, Tasnawat; Roongpraiwan, Rawiwan – Autism: The International Journal of Research & Practice, 2007
Language development in 32 preschool siblings (aged 2-6 years) of children with diagnosed autistic spectrum disorder (ASD) was compared with that of a control group of 28 typical preschool children. Groups were matched by siblings' age, gender, maternal educational level and family income. The mean ages of the siblings group and the control group…
Descriptors: Foreign Countries, Siblings, Preschool Children, Mental Retardation
Download full textWIENER, GERALD
LOW BIRTH WEIGHT CHILDREN WERE STUDIED LONGITUDINALLY TO DETERMINE WHETHER--(1) THE RELATIVE INTELLECTUAL IMPAIRMENT OF PREMATURE CHILDREN IS STATIC OR CHANGES WITH TIME, (2) A LOW BIRTH WEIGHT CHILD NOT NOTED TO BE IN NEUROLOGICAL DISTRESS COULD HAVE A POOR PROGNOSIS, AND (3) SPECIAL EDUCATIONAL AND EMOTIONAL PROBLEMS COULD ARISE AS A CONSEQUENCE…
Descriptors: Academic Achievement, Children, Factor Analysis, Intelligence
Gray, Susan W.; Klaus, Rupert A. – 1969
An intervention program was designed to study offsetting progressive school retardation of deprived children and the impact of the program on the community. This third report presents findings at the end of the fourth grade, 3 years after the experiment ceased. Subjects were 88 children, all Negro, and 27 of these served as a distal control group.…
Descriptors: Academic Achievement, Blacks, Comparative Analysis, Compensatory Education
