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Items: 1 to 20 of 115

1.

Multiple regression analysis of reading performance data from twin pairs with reading difficulties and nontwin siblings: the augmented model.

Wadsworth SJ, Olson RK, Willcutt EG, DeFries JC.

Twin Res Hum Genet. 2012 Feb;15(1):116-9. doi: 10.1375/twin.15.1.116.

2.

DeFries-Fulker analysis of longitudinal reading performance data from twin pairs ascertained for reading difficulties and from their nontwin siblings.

Astrom RL, Wadsworth SJ, Olson RK, Willcutt EG, DeFries JC.

Behav Genet. 2011 Sep;41(5):660-7. doi: 10.1007/s10519-011-9445-6. Epub 2011 Jan 23.

3.

Genetic and environmental etiologies of reading difficulties: DeFries-Fulker analysis of reading performance data from twin pairs and their nontwin siblings.

Astrom RL, Wadsworth SJ, Olson RK, Willcutt EG, Defries JC.

Learn Individ Differ. 2012 Jun 1;22(3):365-369. Epub 2012 Feb 16.

4.

Multiple regression analysis of twin data obtained from selected samples.

LaBuda MC, DeFries JC, Fulker DW.

Genet Epidemiol. 1986;3(6):425-33.

PMID:
3803912
5.

Sexual orientation in a U.S. national sample of twin and nontwin sibling pairs.

Kendler KS, Thornton LM, Gilman SE, Kessler RC.

Am J Psychiatry. 2000 Nov;157(11):1843-6.

PMID:
11058483
6.

Heritability of testis size.

Estourgie-van Burk GF, Bartels M, Delemarre-van de Waal HA, Boomsma DI.

Twin Res Hum Genet. 2009 Aug;12(4):351-5. doi: 10.1375/twin.12.4.351.

PMID:
19653835
7.

Genetic and environmental influences on substance initiation, use, and problem use in adolescents.

Rhee SH, Hewitt JK, Young SE, Corley RP, Crowley TJ, Stallings MC.

Arch Gen Psychiatry. 2003 Dec;60(12):1256-64.

PMID:
14662558
8.

Confirmatory factor analysis of reading and mathematics performance: a twin study.

Gillis JJ, DeFries JC, Fulker DW.

Acta Genet Med Gemellol (Roma). 1992;41(4):287-300.

PMID:
1342136
9.

Genetic influences on reading difficulties in boys and girls: the Colorado twin study.

Hawke JL, Wadsworth SJ, DeFries JC.

Dyslexia. 2006 Feb;12(1):21-9.

PMID:
16512171
10.

Comorbidity of mathematics and reading deficits: evidence for a genetic etiology.

Knopik VS, Alarcón M, DeFries JC.

Behav Genet. 1997 Sep;27(5):447-53.

PMID:
9336081
11.

Twin specific risk factors in primary school achievements.

de Zeeuw EL, van Beijsterveldt CE, de Geus EJ, Boomsma DI.

Twin Res Hum Genet. 2012 Feb;15(1):107-15. doi: 10.1375/twin.15.1.107.

PMID:
22784460
12.

Differential genetic etiology of reading difficulties as a function of IQ: an update.

Wadsworth SJ, Olson RK, DeFries JC.

Behav Genet. 2010 Nov;40(6):751-8. doi: 10.1007/s10519-010-9349-x. Epub 2010 Mar 24. Review.

13.

Comorbidity of reading and mathematics disabilities: genetic and environmental etiologies.

Light JG, DeFries JC.

J Learn Disabil. 1995 Feb;28(2):96-106.

PMID:
7884303
14.

Causal models of reading disability: a twin study.

Tiu RD Jr, Wadsworth SJ, Olson RK, DeFries JC.

Twin Res. 2004 Jun;7(3):275-83.

PMID:
15193172
15.

Genetic and environmental influences on the familial transmission of externalizing disorders in adoptive and twin offspring.

Hicks BM, Foster KT, Iacono WG, McGue M.

JAMA Psychiatry. 2013 Oct;70(10):1076-83. doi: 10.1001/jamapsychiatry.2013.258.

16.

Colorado longitudinal twin study of reading disability.

Wadsworth SJ, DeFries JC, Olson RK, Willcutt EG.

Ann Dyslexia. 2007 Dec;57(2):139-60. Epub 2007 Dec 4.

PMID:
18060583
17.

Drinking behavior in the Colorado adoptee and twin sample.

Gabrielli WF Jr, Plomin R.

J Stud Alcohol. 1985 Jan;46(1):24-31.

PMID:
4038764
18.

Genetic and environmental influences on age at sexual initiation in the Colorado Adoption Project.

Bricker JB, Stallings MC, Corley RP, Wadsworth SJ, Bryan A, Timberlake DS, Hewitt JK, Caspi A, Hofer SM, Rhea SA, DeFries JC.

Behav Genet. 2006 Nov;36(6):820-32. Epub 2006 May 19.

PMID:
16710776
19.

Multiple regression analysis of twin data: a model-fitting approach.

Cherny SS, DeFries JC, Fulker DW.

Behav Genet. 1992 Jul;22(4):489-97. Erratum in: Behav Genet 1993 Sep;23(5):423.

PMID:
1503550
20.

Parent ratings of EAS temperaments in twins, full siblings, half siblings, and step siblings.

Saudino KJ, McGuire S, Reiss D, Hetherington EM, Plomin R.

J Pers Soc Psychol. 1995 Apr;68(4):723-33.

PMID:
7738774

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