• Corpus ID: 6423703

The use of the classical twin method in the social and behavioral sciences: The fallacy continues.

@article{Joseph2013TheUO,
  title={The use of the classical twin method in the social and behavioral sciences: The fallacy continues.},
  author={Jay Joseph},
  journal={Journal of Mind and Behavior},
  year={2013}
}
  • J. Joseph
  • Published 2013
  • Psychology
  • Journal of Mind and Behavior
The classical twin method assesses differences in behavioral trait resemblance between reared-together monozygotic and same-sex dizygotic twin pairs. Twin method proponents argue that the greater behavioral trait resemblance of the former supports an important role for genetic factors in causing the trait. Many critics, on the other hand, argue that non-genetic factors plausibly explain these results. The twin method has been used for decades in psychology, psychiatry, and medicine, and more… 

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References

SHOWING 1-10 OF 108 REFERENCES

A test of the equal-environment assumption in twin studies of psychiatric illness

A newly developed model-fitting approach which treats perceived zygosity as a form of specified familial environment is used which supports the validity of the EEA in twin studies of psychiatric disorders.

Twin method: Defense of a critical assumption

Perceived zygosity and perceived similarity by self and others were found to be insignificant biases in the twin study method.

Twin Studies of Political Behavior: Untenable Assumptions?

It is concluded that the equal environments assumption remains untenable, and as such, twin studies are an insufficient method for drawing meaningful conclusions regarding complex human behavior.

Twin Studies of General Mental Ability

Twin studies are a vital source of information about genetic and environmental influences on general mental ability. The classic twin design—comparison of the relative similarity between monozygotic

A test of the equal environment assumption (EEA) in multivariate twin studies.

  • E. DerksC. DolanD. Boomsma
  • Psychology
    Twin research and human genetics : the official journal of the International Society for Twin Studies
  • 2006
The analysis of spatial ability and aggression indicated no detectable violation of theequal environment assumption, and multivariate data provide sufficient information to test the validity of the EEA.

Political Science, Biometric Theory, and Twin Studies: A Methodological Introduction

As political scientists begin to incorporate biological influences as explanatory factors in political behavior, the need to present a methodological road map for utilizing biometric genetic theory

The Genetics of Political Attitudes and Behavior: Claims and Refutations

  • J. Joseph
  • Sociology
    Ethical Human Psychology and Psychiatry
  • 2010
Some political scientists have argued in recent years that twin research shows that genetic factors play an important role in shaping political attitudes, ideologies, and behavior. Moreover, some

What can we learn from twin studies? A comprehensive evaluation of the equal environments assumption.

  • J. Felson
  • Psychology
    Social science research
  • 2014

Genetic and Environmental Influences on Adult Personality: Evaluating the Evidence

This paper is made up of two parts. In the first part we outline a frame of reference (the Big Five) for organizing the data from Behavior Genetic studies of adult personality and then briefly review
...