Daniel J. Kruger, Ph.D.

University of Michigan
djk2012 -at- gmail -dot- com

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All contents copyright 1998-2008

New: Henry Stewart Talks series on Evolution and Medicine

New Paper:

Kruger, D.J., Reischl, T., & Zimmerman, M.A. (2008). Time perspective as a functional developmental adaptation. Journal of Social, Evolutionary, and Cultural Psychology, 2, 1-22.

Evolutionary Life History Theory (LHT) is a powerful framework that can be used for understanding behavioral strategies as functional adaptations to environmental conditions. Some evolutionary theorists have described how developmental environments can shape behavioral strategies. Theorists and previous research suggest that individuals developing in relatively less certain environments will exhibit riskier, present oriented, behavioral strategies because of the low probability of reproductive success for more cautious approaches. An evolutionary psychology approach to LHT includes the identification of psychological processes that regulate behavioral strategies as a result of developmental experiences. This paper proposes that time perspective is one psychological mechanism that may underlie functional developmental adaptation. A survey study of urban middle school students (N=607) assessed the relationship between perceptions of local social conditions, time perspective, and risky behaviors. Structural equation model analyses indicated that present and future orientations completely mediated the relationship of positive and negative aspects of students’ neighborhood social environment with reports of interpersonal aggression and illicit resource exploitation. This model had a better fit to the data than competing models depicting time perspective as a byproduct of either phenotypic strategy or social-environmental experiences.