Do men with deep voices have more children?
s. Via Gad Saad: The validity of evolutionary explanations of vocal sexual dimorphism hinges upon whether or not individuals with more sexually dimorphic voices have higher reproductive success than individuals with less dimorphic voices. However, due to modern birth control methods, these data are rarely described, and mating success is often used as a second-rate proxy. Here, we test whether voice pitch predicts reproductive success, number of children born and child mortality in an evolutionarily relevant population of hunter-gatherers. While…
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Do collectivist cultures produce better sports teams?
s: Purpose. Research outside sport psychology indicates that collectivist cultures positively influence group achievements. Because of this results of sports teams from collectivist cultures should be better than those of their counterparts from individualist cultures. This hypothesis was examined in two studies. Basic procedures. (1) In study I, 15 coaches, using the IC Interpersonal Assessment Inventory (ICIAI), enumerated characteristics that a perfect team member should possess. (2) In study II, individual results (achieved between 2001 and 2008) of four top…
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How to quickly and easily get much stronger:
nd a good placebo: This study used false information about a placebo (milk-sugar tablet) to induce expectancies regarding force production. Forty-two college students were assigned to a placebo/placebo (PP), placebo/no-placebo (PN), or control group, and underwent baseline testing and two trials assessing one-repetition maximum (1 RM) strength on a bench press and seated leg press. The PP and PN groups improved significantly compared to the control at Trial 1 for the bench press (p ≤ .01) and leg press (p…
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Do firm muscles equal firm willpower?
ross five studies, we show that firming one’s muscles can help firm willpower and firmed willpower mediates people’s ability to withstand immediate pain, overcome tempting food, consume unpleasant medicines, and attend to immediately disturbing but essential information, provided doing so is seen as providing long term benefits. We draw on theories of embodied cognition to explain our results, and we add to that literature by showing for a first time that our bodies can help firm willpower and facilitate self-regulation…
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What really makes your hairstylist perform at their best?
examined the relations for hairstylists between trust and routine and creative performance and the extent to which these service employees trust their supervisors and customers. We also investigated whether psychological safety mediated these trust-performance relations. Results suggested that trust in supervisors and trust in customers made significant, independent, and joint contributions to employees' creative performance; however, only trust in supervisors was related to routine performance. Moreover, psychological safety mediated the trust in supervisor-performance links, but did not mediate the…
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Do security cameras make us act kinder?
is study addresses the effects of security cameras on prosocial behavior. Results from previous studies indicate that the presence of others can trigger helping behavior, arising from the need for approval of others. Extending these findings, the authors propose that security cameras can likewise trigger such approval-seeking behaviors by implying the presence of a watchful eye. Because people vary in the extent to which they strive for others' approval, it was expected that the effects of security cameras on prosocial…
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A Woman’s Level Of Sexual Satisfaction Can Predict Her Mental And Physical Health
ructural equation modelling was used to assess the strengths of the links between sexual satisfaction and self-reported (a) relationship well-being, (b) mental health, and (c) physical health for women in same-sex (i.e., homosexual, n = 114) versus mixed-sex (i.e., heterosexual, n = 208) relationships. Participants came from a large-scale Internet study. Sexual satisfaction was found to be an extremely strong predictor of relational well-being, a strong predictor of mental health, and a weak to moderately strong predictor of physical health.…
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Should hope your country does not host the Winter Olympic Games?
is article analyses stock market reactions in countries competing to hold the Olympic Games around the time of the winning bid announcements, using both regular and abnormal returns. We analyse the announcement effects of winning and losing for both Summer and Winter games, beginning with 1996 games announced in 1990, up until the announcement of the 2012 games in 2006. We find significantly negative stock market reaction for winners of the bid to host Winter Games and insignificant positive reaction…
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