References
- American Psychiatric Association . 1987 . Diagnostic and statistical manual of mental disorders , (3rd ed.) , New York : Author .
- Anderson , J. C. , Williams , S. , McGee , R. and Silva , P. A. 1987 . DSM‐III disorders in préadolescent children . Archives of General Psychiatry , 44 : 69 – 76 .
- August , G. J. and Garfinkel , B. D. 1990 . Comorbidity of ADHD and reading disability among clinic‐referred children . Journal of Abnormal Child Psychology , 18 : 29 – 45 .
- Biederman , J. , Faraone , S. V. , Keenan , K. , Knee , D. and Tsuang , M. T. 1990 . Family‐genetic and psychosocial risk factors in DSM‐III attention deficit disorder . Journal of the American Academy of Child and Adolescent Psychiatry , 29 : 526 – 533 .
- Biederman , J. , Newcorn , J. and Sprich , S. 1991 . Comorbidity of attention deficit hyperactivity disorder with conduct, depressive, anxiety, and other disorders . American Journal of Psychiatry. , 48 : 564 – 577 .
- Cantwell , D. P. and Baker , L. 1991 . Association between attention deficit‐hyperactivity disorder and learning disorders . Journal of Learning Disabilities , 24 : 88 – 95 .
- Cantwel] , D. P. and Satterfield , J. H. 1978 . Prevalence of academic achievement in hyperactive children . Journal of Pediatric Psychology , 3 : 168 – 171 .
- DeFries , J. C. 1985 . “ Colorado reading project ” . In Biobehavioral measures of dyslexia , Edited by: Gray , D. B. and Kavanagh , J. F. 107 – 122 . Parkton, MD : York Press .
- DeFries , J. C. and Fulker , D. W. 1985 . Multiple regression analysis of twin data . Behavior Genetics , 15 : 467 – 173 .
- DeFries , J. C. and Fulker , D. W. 1988 . Multiple regression analysis of twin data: Etiology of deviant scores versus individual differences . Acta Geneticae Medicae et Gemellolgiae , 37 : 205 – 216 .
- DeFries , J. C. , Fulker , D. W. and LaBuda , M. C. 1987 . Evidence for a genetic aetiology in reading disability of twins . Nature , 329 : 537 – 539 .
- DeFries , J. C. and Gillis , J. J. 1991 . “ Etiology of reading deficits in learning disabilities: Quantitative genetic analysis ” . In Neuropsychological foundations of learning disabilities: A handbook of issues, methods and practice , Edited by: Obrzut , J. E. and Hynd , G. W. 29 – 47 . Orlando, FL : Academic .
- DeFries , J. C. and Gillis , J. J. 1993 . “ Genetics of reading disability ” . In Nature, nurture and psychology , Edited by: Plomin , R. and McClearn , G. E. 121 – 145 . Washington, DC : APA Books .
- DeFries , J. C. , Gillis , J. J. and Wadsworth , S. J. 1993 . “ Genes and genders: A twin study of reading disability ” . In Dyslexia and development: Neurobiological aspects of extra‐ordinary brains , Edited by: Galaburda , A. M. 187 – 204 . 342 – 344 . Cambridge, MA : Harvard University Press .
- DeFries , J. C. and Light , J. G. “ Reading disability in twins ” . In Language, learning, and behavior , Edited by: Beitchman , J. H. New York : Cambridge University Press . (in press)
- DeFries , J. C. , Stevenson , J. , Gillis , J. J. and Wadsworth , S. J. 1991 . Genetic etiology of spelling deficits in the Colorado and London twin studies of reading disability . Reading and Writing: An Interdisciplinary Journal , 3 : 271 – 283 .
- Dunn , L. M. and Markwardt , F. C. 1970 . Examiner's manual: Peabody Individual Achievement Test , Circle Pines, MN : American Guidance Service .
- Dykman , R. A. and Ackerman , P. T. 1991 . Attention deficit disorder and specific reading disability: Separate but often overlapping disorders . Journal of Learning Disabilities , 24 : 96 – 103 .
- Felton , R. H. , Wood , F. B. , Brown , L. B. , Campbell , J. and Harter , M. R. 1987 . Separate verbal memory and naming deficits in attention deficit disorder and reading disability . Brain and Language , 31 : 171 – 184 .
- Gilger , J. W. , Pennington , B. F. and DeFries , J. C. 1992 . A twin study of the etiology of comorbidity: Attention‐deficit hyperactivity disorder and dyslexia . Journal of the American Academy of Child and Adolescent Psychiatry , 31 : 343 – 348 .
- Gillis , J. J. , Gilger , J. W. , Pennington , B. F. and DeFries , J. C. 1992 . Attention deficit disorder in reading‐disabled twins: Evidence for a genetic etiology . Journal of Abnormal Child Psychology , 20 : 303 – 315 .
- Halperin , J. M. , Gittleman , R. , Klein , D. F. and Rudel , R. G. 1984 . Reading‐disabled hyperactive children: A distinct subgroup of attention deficit disorder with hyperactivity? . Journal of Abnormal Child Psychology , 12 : 1 – 14 .
- Herjanic , B. , Campbell , J. and Reich , W. 1982 . Development of a structured psychiatric interview for children: Agreement between child and parent on individual symptoms . Journal of Abnormal Child Psychology , 10 : 307 – 324 .
- Holborow , P. L. and Berry , P. S. 1986 . Hyperactivity and learning difficulties . Journal of Learning Disabilities , 19 : 426 – 431 .
- Interagency Committee on Learning Disabilities . 1987 . Learning disabilities: A report to the U.S. Congress , Washington, DC : U.S. Government Printing Office .
- Lahey , B. B. and Carlson , C. L. 1991 . Validity of the diagnostic category of attention deficit disorder without hyperactivity: A review of the literature . Journal of Learning Disabilities , 24 : 110 – 120 .
- Lambert , N. M. and Sandoval , J. 1980 . The prevalence of learning disabilities in a sample of children considered hyperactive . Journal of Abnormal Child Psychology , 8 : 33 – 50 .
- Light , J. G. and DeFries , J. C. 1995 . Comorbidity of reading and mathematics disabilities: Genetic and environmental etiologies . Journal of Learning Disabilities , 28 : 96 – 106 .
- Loney , J. 1987 . “ Hyperactivity and aggression in the diagnosis of attention deficit disorder ” . In Advances in clinical child psychology , Edited by: Lahey , B. B. and Kazdin , A. E. Vol. 10 , 99 – 135 . New York : Plenum .
- Nichols , R. C. and Bilbro , W. C. 1966 . The diagnosis of twin zygosity . Acta Genética et Statistica Medica , 16 : 265 – 275 .
- Pennington , B. F. 1991 . Diagnosing learning disorders: A neuropsychological framework , New York : Guilford .
- Pennington , B. F. , Groisser , D. and Welsh , M. C. 1993 . Contrasting cognitive deficits in attention deficit hyperactivity disorder versus reading disability . Developmental Psychology , 29 : 511 – 523 .
- Shaywitz , S. E. and Shaywitz , B. A. Attention deficit disorder: Current perspectives . Learning disabilities: Proceedings of the national conference . Edited by: Kavanaugh , J. F. and Truss , T. J. pp. 369 – 523 . Parkton, MD : York Press .
- Shaywitz , S. E. and Shaywitz , B. A. 1991 . Introduction to the special series on attention deficit disorder . Journal of Learning Disabilities , 24 : 68 – 71 .
- Stevenson , J. 1992 . Evidence for a genetic etiology in hyperactivity in children . Behavior Genetics , 22 : 337 – 344 .
- Stevenson , J. , Pennington , B. F. , Gilger , J. W. , DeFries , J. C. and Gillis , J. J. 1993 . Hyperactivity and spelling disability: Testing for shared genetic aetiology . Journal of Child Psychology and Psychiatry , 34 : 1137 – 1152 .
- Thompson , J. S. and Thompson , M. W. 1986 . Genetics in medicine , (4th ed.) , Philadelphia : Saunders .
- Wadsworth , S. J. , Gillis , J. J. , DeFries , J. C. and Fulker , D. W. 1989 . Differential genetic aetiology of reading disability as a function of age . The Irish Journal of Psychology , 10 : 509 – 520 .
- Wechsler , D. 1974 . Examiner's manual: Wechsler Intelligence Scale for Children‐Revised , New York : Psychological Corporation .
- Wechsler , D. 1981 . Examiner's manual: Wechsler Adult Intelligence Scale‐Revised , New York : Psychological Corporation .
- Welner , Z. , Reich , W. , Herjanic , B. , Jung , K. G. and Amado , H. 1987 . Reliability, validity, and parent—child agreement studies of the Diagnostic Interview for Children and Adolescents (DICA) . Journal of the American Academy of Child and Adolescent Psychiatry , 26 : 649 – 653 .