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| Biological Influences | 2 |
| Children | 2 |
| Intelligence Differences | 2 |
| Symptoms (Individual… | 2 |
| Adolescents | 1 |
| Attention Deficit Disorders | 1 |
| Disability Identification | 1 |
| Environmental Influences | 1 |
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| Family Influence | 1 |
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Author
| Baumgardner, Thomas | 1 |
| DeFries, John C. | 1 |
| Freund, Lisa S. | 1 |
| Mazzocco, Michele M. M. | 1 |
| Olson, Richard K. | 1 |
| Pennington, Bruce F. | 1 |
| Reiss, Allan L. | 1 |
| Wadsworth, Sally J. | 1 |
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| Journal Articles | 2 |
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Peer reviewedMazzocco, Michele M. M.; Baumgardner, Thomas; Freund, Lisa S.; Reiss, Allan L. – Journal of Autism and Developmental Disorders, 1998
Social behaviors among girls (ages 6-16) with fragile X (n=8) or Turner syndrome (n=9) were examined to address the role of family environment versus biological determinants of social dysfunction. Compared to their sisters, subjects had lower IQS and higher rating of social and attention problems. (Author/CR)
Descriptors: Adolescents, Attention Deficit Disorders, Biological Influences, Children
Peer reviewedWadsworth, Sally J.; Olson, Richard K.; Pennington, Bruce F.; DeFries, John C. – Journal of Learning Disabilities, 2000
Composite reading performance data from 223 pairs of identical twins and 169 same-gender fraternal twins in which at least one member was classified with reading disability were subjected to multiple regression analysis. Results indicated that the genetic etiology of reading disability differs as a linear function of IQ. (Contains extensive…
Descriptors: Biological Influences, Children, Disability Identification, Environmental Influences
