Evolutionary Psychology,Ethology, and Essentialism (Because What They Don't Know Can Hurt Us)

In 2002, Evolution and Human Behavior published a study purporting to show that the differences in toy preferences commonly attributed to girls and boys can also be found in male and female vervet monkeys, tracing the origin of these differing preferences back to a common ancestor. Despite some flaws in its design and the prima facie implausibility of some of its central claims, this research received considerable attention in both scientific circles and the popular media. In what follows, I survey some of the problems with this study that seem to be characteristic of research into sex differences in a particular research program in evolutionary psychology. I suggest that an epistemology of ignorance is at work that suppresses the methods and insights of an earlier research program, which emphasized the complexity and contingency that ultimately grounds the variety of human behaviors, in favor of one that has been widely criticized as empirically flawed and politically pernicious. I conclude with some speculative remarks on the persistence of this problematic research program in evolutionary psychology.     

What You Don’t Know Can Hurt You1

This boy is Ignorance. This girl is Want. Beware them both, and all of their degree, but most of all beware this boy, for on his brow I see that written which is Doom... —Charles Dickens, A Christmas Carol     

Faith-Based Sex Education Programs: What They Look Like and Who Uses Them

The purpose of this study was to explore the kinds of sex education programs for youth available in mainline churches. This research project sought to identify the kinds of programs developed, the ages of the youth involved, the reasons for implementing the programs, the goals of the programs, the topics covered, and the perceived youth response to these programs as identified by youth ministers and leaders. The sample included 92 churches/synagogues with memberships over 300 that were within a 25-mile radius of our small, urban area in southeast Michigan. Findings from this study lay the groundwork for exploring whether these programs have an impact on adolescents’ sexual behaviors.     

FEMALE AGGRESSION TOWARD MALE INTIMATE PARTNERS: AN EXAMINATION OF SOCIAL NORMS IN A COMMUNITY-BASED SAMPLE

We investigated the effect of assailant gender on injunctive social norms (i.e., beliefs about what ought to happen) regarding violence toward an intimate heterosexual partner. In a random-digit-dialed survey conducted in four languages, 3,769 community-residing adults were presented with five vignettes in which we experimentally manipulated characteristics of the assailant, victim, and incident. We examined the vignette variables and measured respondent characteristics using multivariate logistic regressions. Judgments about women's violence against male intimates (vs. men's violence against female intimates) were less harsh and took contextual factors more fully into account. The type of violence and the presence of a weapon played a central role in respondent judgments. Respondent demographic characteristics were largely unrelated to their judgments.