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Exploring variation in active network size: Constraints and ego characteristics
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Political Extremism Predicts Belief in Conspiracy Theories
Historical records suggest that the political extremes—at both the “left” and the “right”—substantially endorsed conspiracy beliefs about other-minded groups. The present contribution empirically…
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Natural Selection on Male Wealth in Humans
TLDR
The British data show positive selection on male income driven by increased childlessness among low‐income men but a negative association between personal income and reproductive success for women, and selection gradients for male wealth are weakest in industrial countries and strongest in subsistence societies with extensive polygyny.
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Reproductive Behavior and Personality Traits of the Five Factor Model
We examined associations between Five Factor Model personality traits and various outcomes of reproductive behavior in a sample of 15 729 women and men from the Wisconsin Longitudinal Study (WLS) and…
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Interventions for children and adolescents with posttraumatic stress disorder: A meta-analysis of comparative outcome studies.
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Use of Social Network Sites and Instant Messaging Does Not Lead to Increased Offline Social Network Size, or to Emotionally Closer Relationships with Offline Network Members
TLDR
Time spent using social media was associated with a larger number of online social network "friends," but time spent usingsocial media was not associated with larger offline networks, or feeling emotionally closer to offline network members.
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Genetic relatedness and sibling relationship characteristics in a modern society
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Extraverts Have Larger Social Network Layers But Do Not Feel Emotionally Closer to Individuals at Any Layer
Previous studies showed that extraversion influences social network size. However, it is unclear how extraversion affects the size of different layers of the network, and how extraversion relates to…
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Contact frequencies between grandparents and grandchildren in a modern society: estimates of the impact of paternity uncertainty
Evolutionary theory suggests that maternal grandparents will invest more in their grandchildren than paternal grandparents, due to the difference between the certainty of maternity and the…
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Are Human Mating Preferences with Respect to Height Reflected in Actual Pairings?
TLDR
While preferences for partner height generally translate into actual pairing, they do so only modestly, and another preference rule, namely that short women ( and tall men) prefer large height differences with their partner, whereas tall women (and short women) prefer small height differences is investigated.
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