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Gender Ratios Among Reading‐Disabled Children and Their Siblings as a Function of Parental Impairment
Author(s) -
Wadsworth Sally J.,
DeFries J. C.,
Stevenson Jim,
Gilger Jeffrey W.,
Pennington B. F.
Publication year - 1992
Publication title -
journal of child psychology and psychiatry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.652
H-Index - 211
eISSN - 1469-7610
pISSN - 0021-9630
DOI - 10.1111/j.1469-7610.1992.tb00941.x
Subject(s) - psychology , proband , developmental psychology , sibling , reading disability , reading (process) , dyslexia , genetics , gene , political science , law , mutation , biology
Abstract Gender ratios are reported for 374 reading‐disabled probands and their S.M siblings included in five independent studies of reading disability. Ratios were tabulated for each study as a function of parental impairment (neither parent affected, mother only affected, father only affected, and both parents affected), Results reveal, a small excess of male probands in referred and clinic samples of reading‐disabled children, bin not in research‐identified samples. Gender ratios among siblings of reading‐disabled probands are approximately 1:1. In addition, combined results indicate that gender ratios of neither probands nor their siblings vary substantially as a function of parental impairment.