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Stephen A. Petrill
Researcher at Ohio State University
Publications - 196
Citations - 9872
Stephen A. Petrill is an academic researcher from Ohio State University. The author has contributed to research in topics: Reading (process) & Cognition. The author has an hindex of 52, co-authored 192 publications receiving 9074 citations. Previous affiliations of Stephen A. Petrill include The Research Institute at Nationwide Children's Hospital & Virginia Tech.
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Journal ArticleDOI
Substantial genetic influence on cognitive abilities in twins 80 or more years old
Gerald E. McClearn,Boo Johansson,Stig Berg,Nancy L. Pedersen,Frank M. Ahern,Stephen A. Petrill,Robert Plomin +6 more
TL;DR: Evidence is provided for the significant influence of idiosyncratic experience as the environmental component that most determines individual differences in cognitive abilities late in life.
Journal ArticleDOI
The heritability of general cognitive ability increases linearly from childhood to young adulthood
Claire M. A. Haworth,Margaret J. Wright,Michelle Luciano,N. G. Martin,E.J.C. de Geus,C. E. M. van Beijsterveldt,Meike Bartels,Danielle Posthuma,Dorret I. Boomsma,Oliver S. P. Davis,Yulia Kovas,Robin P. Corley,John C. DeFries,John K. Hewitt,Richard K. Olson,Sa Rhea,Sally J. Wadsworth,William G. Iacono,Matt McGue,Lee A. Thompson,Sara A. Hart,Stephen A. Petrill,David Lubinski,Robert Plomin +23 more
TL;DR: It is shown for general cognitive ability that, to the contrary, genetic influence increases with age, and this finding suggests new ways of thinking about the interface between nature and nurture during the school years.
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Infant zygosity can be assigned by parental report questionnaire data
Thomas S. Price,Bernard Freeman,Ian W. Craig,Stephen A. Petrill,Lorna Ebersole,Robert Plomin +5 more
TL;DR: A parental report questionnaire posted to a population sample of 18-month-old twins correctly assigned zygosity in 95% of cases when validated against zygosa determined by identity of polymorphic DNA markers.
Journal ArticleDOI
Comorbidity Between Reading Disability and Math Disability Concurrent Psychopathology, Functional Impairment, and Neuropsychological Functioning
Erik G. Willcutt,Stephen A. Petrill,Sarah Wu,Richard Boada,John C. DeFries,Richard K. Olson,Bruce F. Pennington +6 more
TL;DR: It is suggested that RD and MD are distinct but related disorders that co-occur because of shared neuropsychological weaknesses in working memory, processing speed, and verbal comprehension.
Journal ArticleDOI
One-year use and cost of inpatient and outpatient services among Female and male patients with an eating disorder: Evidence from a national database of health insurance claims
Ruth H. Striegel-Moore,Douglas L. Leslie,Douglas L. Leslie,Stephen A. Petrill,Vicki Garvin,Robert A. Rosenheck,Robert A. Rosenheck +6 more
TL;DR: Female patients were significantly more likely to have been treated for an eating disorder than male patients, and females received more days of treatment than males, and age-adjusted costs for the treatment of anorexia nervosa and bulimia nervosa were comparable to the cost of treatment for schizophrenia.