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We investigated cross-trait assortative mating for the traits of physical attractiveness and intelligence using data from the Wisconsin Longitudinal Study. It was hypothesized that more physically attractive individuals would have a spouse that was more intelligent, but that this association would be moderated by sex. Specifically, we predicted that more physically attractive women would have more intelligent husbands, but that a man’s physical attractiveness would not predict his wife’s intelligence. The results of correlation and regression analyses were consistent with these predictions, although the effect sizes were small. Additionally, we identified an interaction in which women’s physical attractiveness was more strongly associated with their husbands’ intelligence for more intelligent women than for less intelligent women. We conclude with suggestions for further research addressing cross-trait assortative mating for physical attractiveness and intelligence.

Cross-trait assortment for intelligence and physical attractiveness in a long-term mating context.