Mothers Do Matter: New Evidence on the Effect of Parents' Schooling on Children's Schooling Using Swedish Twin Data [PDF]
Behrman and Rosenzweig (2002) used data on a small sample of MZ (monozygotic, identical) twin parents and their children to show that father's schooling is more important than mother's schooling for children's schooling in the U.S.
Amin, Vikesh +2 more
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THE APPLICATION OF AN INDEX TO DETERMINE GENETIC AND ENVIRONHENTAL CONTRIBUTIONS TO DENTOFACIAL GROWTH IN TWINS AND SIBLINGS [PDF]
, 1970 The method of principal components may be used to reduce a large quantity of data for an individual into a single statistic, a growth index, indicative of overall facial growth, and to make a determination of the relative contribution of each variable ...
Hayes, Richard Charles
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Unobserved heterogeneity in a model with cure fraction applied to breast cancer [PDF]
We suggest a cure-mixture model to analyze bivariate time-to-event data, as motivated by the paper of Chatterjee and Shih (2001, Biometrics 57, 779 - 786), but with a simpler estimation procedure and the correlated gamma-frailty model instead of the ...
Anatoli I. Yashin +2 more
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Class - III malocclusion: Genetics or environment? A twins study
Journal of Indian Society of Pedodontics and Preventive Dentistry, 2005 Etiology of class-III malocclusion is generally believed to be genetic. A wide range of environmental factors have been suggested as contributing factors for the development of class-III malocclusion.
Jena A, Duggal R, Mathur V, Parkash H
doaj
An investigation into the voice of identical twins [PDF]
, 2013 An investigation into the voice of identical twinsRunning title: Voice of identical twinsAbstractThe study aimed at perceptually and acoustically differentiating the voices of identical twins from each other.
Sebastian, Swapna
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Influence of heritability on craniofacial soft tissue characteristics of monozygotic twins, dizygotic twins, and their siblings using Falconer's method and principal components analysis. [PDF]
Korean J Orthod, 2019 Song J +6 more
europepmc +1 more source
Improvements and Future Challenges in the Field of Genetically Sensitive Sample Designs [PDF]
Understanding the sources of individual differences beyond social and economic effects has become a research area of growing interest in psychology, sociology, and economics.
Frank M. Spinath
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Testis size and dizygotic twins [PDF]
Nature, 1986 L R, Willatt, D J, Bartlett
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