Behavior Genetics

, Volume 20, Issue 2, pp 277–285

Who discovered the twin method?

  • Richard D. Rende
  • Robert Plomin
  • Steven G. Vandenberg
Regular Articles

Abstract

The twin method is usually credited to Francis Galton's 1875 article on twins. However, Galton did not propose the comparison between identical and fraternal twin resemblance which is the essence of the twin method. Although the twin method was “in the air” in the mid-1920s, the first descriptions of the method appeared in an article by Curtis Merriman and in a book by Hermann Siemens, both in 1924, 50 years after Galton's paper.

Key Words

twin method history Galton Merriman Siemens 

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Copyright information

© Plenum Publishing Corporation 1990

Authors and Affiliations

  • Richard D. Rende
    • 1
  • Robert Plomin
    • 1
  • Steven G. Vandenberg
    • 2
  1. 1.The Center for Developmental and Health Genetics, College of Health and Human DevelopmentThe Pennsylvania State UniversityUniversity Park
  2. 2.Institute for Behavioral GeneticsThe University of ColoradoBoulder

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