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Evolutionary psychology's notion of differential grandparental investment and the Dodo Bird Phenomenon: Not everyone can be right

Published online by Cambridge University Press:  09 April 2010

Martin Voracek ,
Ulrich S. Tran  and
Maryanne L. Fisher
Martin Voracek
Affiliation:
Department of Basic Psychological Research, School of Psychology, University of Vienna, A-1010 Vienna, Austria. martin.voracek@univie.ac.athttp://homepage.univie.ac.at/martin.voracek/
Ulrich S. Tran
Affiliation:
Department of Clinical, Biological, and Differential Psychology, School of Psychology, University of Vienna, A-1010 Vienna, Austria. ulrich.tran@univie.ac.at
Maryanne L. Fisher
Affiliation:
Department of Psychology, St. Mary's University, Halifax, Nova Scotia, B3H 3C3, Canada. mlfisher@smu.ca
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Abstract

Integration of different lines of research concerning grandparental investment appears to be both promising and necessary. However, it must stop short when confronted with incommensurate arguments and hypotheses, either within or between disciplines. Further, some hypotheses have less plausibility and veridicality than others. This point is illustrated with results that conflict previous conclusions from evolutionary psychology about differential grandparental investment.

Type
Open Peer Commentary
Information
Behavioral and Brain Sciences , Volume 33 , Issue 1 , February 2010 , pp. 39 - 40
Copyright
Copyright © Cambridge University Press 2010

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