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Response: Avuncularity and Kin Selection in Homosexuals: A Problematic Test or a Problematic Hypothesis?
Andrea S Camperio Ciani1, Umberto Battaglia1, Marina Liotta1
1a Department of Philosophy, Sociology, Pedagogy, and Applied Psychology , University of Padova .
Journal of Sex Research
|January 12, 2016
Summary
Societal norms, not sexual orientation, influence kin altruism in males. This study refutes the kin selection and avuncularity hypothesis for homosexuality, even in tribal societies.
Area of Science:
- Evolutionary Psychology
- Anthropology
- Behavioral Ecology
Background:
- The kin selection and avuncularity hypothesis suggests homosexuality is linked to inclusive fitness benefits.
- Previous research has explored this hypothesis across various cultural contexts.
- Critical comments questioned the suitability of the Urak-Lawoi population and statistical methods used in a prior study.
Purpose of the Study:
- To address critical comments regarding the Urak-Lawoi population's suitability and statistical analyses.
- To re-evaluate the kin selection and avuncularity hypothesis for homosexuality.
- To present evidence supporting societal norms over sexual orientation in influencing kin altruism.
Main Methods:
- Historical data analysis to establish the Urak-Lawoi population's tribal characteristics.
- Rigorous statistical analysis, including comparative tests and multivariate regression.
- Controlling for confounding variables in all analyses.
Main Results:
- The Urak-Lawoi population at the study's inception was indeed tribal and primitive, despite later tourism development.
- Statistical analyses consistently controlled for confounding variables, as approved by reviewers.
- Empirical data does not support the kin selection and avuncularity hypothesis for homosexuality.
Conclusions:
- The kin selection and avuncularity hypothesis for homosexuality lacks empirical support.
- Societal norms appear to be a more significant factor than sexual orientation in kin altruism.
- The study reaffirms the importance of cultural context in understanding human behavior.
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