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  1. Richard L. Michalski (2010). Measures of Grandparental Investment as a Limiting Factor in Theoretical and Empirical Advancement. Behavioral and Brain Sciences 33 (1):32-33.
    To refine our understanding of grandparental investment and its consequences, we need to understand what grandparents do for their grandchildren. Knowing the landscape of grandparental investment will facilitate a better understanding of the impact of grandparental investment on grandchildren and will allow inroads to be made in bridging the different levels of analysis.
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  2. Richard L. Michalski, Todd K. Shackelford & Catherine A. Salmon (2007). Upset in Response to a Sibling's Partner's Infidelities. Human Nature 18 (1):74-84.
    Using data collected from people with at least one brother and one sister, and consistent with an evolutionary perspective, we find that older men and women (a) are more upset by a brother’s partner’s sexual infidelity than by her emotional infidelity and (b) are more upset by a sister’s partner’s emotional infidelity than by his sexual infidelity. There were no effects of participant sex or sex of in-law on upset over a sibling’s partner’s infidelities, but there was an effect of (...)
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  3. Richard L. Michalski & Todd K. Shackelford (2005). Grandparental Investment as a Function of Relational Uncertainty and Emotional Closeness with Parents. Human Nature 16 (3):293-305.
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  4. Todd K. Shackelford, Martin Voracek, David P. Schmitt, David M. Buss, Viviana A. Weekes-Shackelford & Richard L. Michalski (2004). Romantic Jealousy in Early Adulthood and in Later Life. Human Nature 15 (3):283-300.
    Young men are more distressed by a partner’s sexual infidelity, whereas young women are more distressed by a partner’s emotional infidelity. The present research investigated (a) whether the sex difference in jealousy replicates in an older sample, and (b) whether younger people differ from older people in their selection of the more distressing infidelity scenario. We presented forced-choice dilemmas to 202 older people (mean age = 67 years) and to 234 younger people (mean age = 20 years). The sex difference (...)
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  5. Todd K. Shackelford, Gregory J. LeBlanc, Richard L. Michalski & Viviana A. Weekes (2000). Analyses of Mating Differences Within-Sex and Between-Sex Are Complementary, Not Competing. Behavioral and Brain Sciences 23 (4):621-621.
    Analyses of between-sex differences have provided a powerful starting point for evolutionarily informed work on human sexuality. This early work set the stage for an evolutionary analysis of within-sex differences in human sexuality. A comprehensive theory of human sexual strategies must address both between-sex differences and within-sex differences in evolved psychology and manifest behavior.
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