Twin Studies of Homosexuality
T J Taylor
Trinity College, Cambridge
April 1992
A dissertation submitted for the Part II examination in Experimental Psychology
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CONTENTS
INTRODUCTION
TWIN STUDIES OF HOMOSEXUALITY
Why twin studies?
The major studies to date
Kallman, 1952
Heston & Shields, 1968
Bailey & Pillard, 1991
Table 1
: Summary of the major twin studies of homosexuality
Small scale studies and individual case-studies
Table 2
: Summary of small scale reports and individual case studies of homosexuality in twins
CRITICAL ANALYSIS OF THE STUDIES
Explaining the observed variability of a trait: The theory behind twin studies
Problems with the twin study method
Specific problems with the twin study of homosexuality
Conclusions from the studies conducted to date
CURRENT THEORIES OF THE GENESIS OF HOMOSEXUALITY
Within family determinants: Psychoanalysis and beyond
Genetic theories: Sociobiology and homosexuality
Neurohormonal theories
Which is correct?
SUMMARY AND CONCLUSION
BIBLIOGRAPHY
The reference for this paper is:
TJ Taylor 1992 "Twin Studies of Homosexuality", Part II Experimental Psychology Dissertation (unpublished), University of Cambridge, UK.
This document was converted to HTML on 16th December 1997 by
Tim Taylor
http://archive.tim-taylor.com/papers/twin_studies/index.html