Partnering
Why Do Men Report More Opposite-Sex Sexual Partners Than Women? Analysis of the Gender Discrepancy in a British National Probability Survey
Kirstin Mitchell et al.
Journal of Sex Research, forthcoming
Abstract:
In a closed population and defined time period, the mean number of opposite-sex partners reported by men and women should be equal. However, in all surveys, men report more partners. This inconsistency is pivotal to debate about the reliability of self-reported sexual behavior. We used data from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3), a probability sample survey of the British population, to investigate the extent to which survey sampling, accounting strategies (e.g., estimating versus counting), and (mis)reporting due to social norms might explain the inconsistency. Men reported a mean of 14.14 lifetime partners; women reported 7.12. The gender gap of 7.02 reduced to 5.47 after capping the lifetime partner number at the 99th percentile. In addition, adjusting for counting versus estimation reduced the gender gap to 3.24, and further adjusting for sexual attitudes narrowed it to 2.63. Together, these may account for almost two-thirds of the gender disparity. Sampling explanations (e.g., non-U.K.-resident partners included in counts; sex workers underrepresented) had modest effects. The findings underscore the need for survey methods that facilitate candid reporting and suggest that approaches to encourage counting rather than estimating may be helpful. This study is novel in interrogating a range of potential explanations within the same nationally representative data set.
Is There a Male Breadwinner Norm? The Hazards of Inferring Preferences from Marriage Market Outcomes
Ariel Binder & David Lam
NBER Working Paper, August 2018
Abstract:
Spousal characteristics such as age, height, and earnings are often used to infer social preferences. For example, a “male taller” norm has been inferred from the fact that fewer wives are taller than their husbands than would occur with random matching. The large proportion of husbands out-earning their wives has been cited as evidence for a “male breadwinner” norm. We show that it can be misleading to infer social preferences about an attribute from observed marital sorting on that attribute. We show that positive assortative matching on an attribute is consistent with a variety of underlying preferences. Given gender gaps in height and earnings, positive sorting implies it will be rare for women to be taller or richer than their husbands -- even without an underlying preference for shorter or lower-earning wives. Simulations which sort couples positively on permanent earnings can largely replicate the observed distribution of spousal earnings differences in US Census data. Further, we show that an apparent sharp drop in the distribution function at the point where the wife out-earns the husband results from a mass of couples earning identical incomes, a mass which we argue is not evidence of a norm for higher-earning husbands.
Beyond the West: Chemosignaling of Emotions Transcends Ethno-Cultural Boundaries
Jasper de Groot et al.
Psychoneuroendocrinology, forthcoming
Abstract:
Accumulating evidence has pointed to a human capacity to communicate emotions to others via sweat. So far, these studies have relied exclusively on Western Caucasian samples. Our aim was to test whether the chemosensory communication of emotions extended beyond ethno-cultural boundaries, from Western Caucasians (N = 48) to East Asians (N = 48). To test this, we used well-validated materials and procedures, a double-blind design, a pre-registered analysis plan, and a combination of facial electromyography (EMG) and continuous flash suppression techniques to measure unconscious emotions. Our results show that East Asian (and Western Caucasian) female receivers exposed to the sweat (body odor) of fearful, happy, and neutral Western Caucasian male senders emulate these respective states based on body odors, outside of awareness. More specifically, East Asian (and Western Caucasian) receivers demonstrated significantly different patterns of facial muscle activity when being exposed to fear odor, happy odor, and neutral odor. Furthermore, fear odor decreased the suppression time of all faces on an interocular suppression task (IST), indicating subconscious vigilance, whereas happy odor increased the detection speed of happy faces. These combined findings suggest that the ability to perceive emotional signals from body odor may be a universal phenomenon.
Marital violence and fertility in a relatively egalitarian high-fertility population
Jonathan Stieglitz et al.
Nature Human Behaviour, August 2018, Pages 565–572
Abstract:
Ultimate and proximate explanations of men’s physical intimate partner violence (IPV) against women have been proposed. An ultimate explanation posits that IPV is used to achieve a selfish fitness-relevant outcome, and predicts that IPV is associated with greater marital fertility. Proximate IPV explanations contain either complementary strategic components (for example, men’s desire for partner control), non-strategic components (for example, men’s self-regulatory failure), or both strategic and non-strategic components involving social learning. Consistent with an expectation from an ultimate IPV explanation, we find that IPV predicts greater marital fertility among Tsimané forager-horticulturalists of Bolivia (n = 133 marriages, 105 women). This result is robust to using between- versus within-subject comparisons, and considering secular changes, reverse causality, recall bias and other factors (for example, women’s preference for high-status men who may be more aggressive than lower-status men). Consistent with a complementary expectation from a strategic proximate IPV explanation, greater IPV rate is associated with men’s attitudes favouring intersexual control. Neither men’s propensity for intrasexual physical aggression, nor men’s or women’s childhood exposure to family violence predict IPV rate. Our results suggest a psychological and behavioural mechanism through which men exert direct influence over marital fertility, which may manifest when spouses differ in preferred family sizes.
Women’s short-term mating goals elicit avoidance of faces whose eyes lack limbal rings
Mitch Brown, Donald Sacco & Mary Medlin
Evolutionary Behavioral Sciences, forthcoming
Abstract:
Limbal rings are dark rings around the eye’s iris and their presence represents a good genes cue, which augments facial attractiveness. This communicative function implicates limbal rings as especially desirable in short-term mating contexts, suggesting a stronger motivation to approach prospective mates with limbal rings relative to those without. To assess approach and avoidance tendencies more directly, the current study adopted a line bisection task capable of assessing cortical activity. Whereas a right visual-field bias is associated with approach motivation, a left visual-field (LVF) bias is associated with avoidance motivation. In this study, we activated women’s short-term mating motives (vs. a general positive affect control state) and presented a series of male and female faces with and without limbal rings over centrally bisected lines. Participants indicated which side of each line was longer to determine potential activation of consonant cortical areas. Mating-primed women demonstrated LVF bias when presented with targets lacking limbal rings, suggesting an avoidance response, relative to targets with limbal rings. No differences in behavioral tendencies between targets with and without limbal rings emerged for control-primed women. Results indicate the importance of limbal rings in short-term mating decisions by demonstrating a behavioral aversion to prospective mates lacking this health cue.
Hand-in-Hand Combat: Affectionate Touch Promotes Relational Well-Being and Buffers Stress During Conflict
Brittany Jakubiak & Brooke Feeney
Personality and Social Psychology Bulletin, forthcoming
Abstract:
Relational conflict has a considerable impact on relational and personal well-being, but whether that impact is positive or negative depends on how the conflict is managed. Individuals struggle to have constructive conflicts that protect their relationships and avoid excess stress, which can lead to declines in relationship quality over time. The current set of experiments tested whether a brief touch intervention would promote relational well-being and prevent stress during couple conflict discussions. Results indicated that engaging in touch prior to and during conflict was effective to improve couple-members’ conflict behavior and to buffer stress in real (Experiment 1) and imagined (Experiments 2a and 2b) contexts. The results of these experiments suggest that touch may be a simple yet effective intervention for improving couple conflict discussions. In addition, we provide initial evidence that enhanced state security and cognitive interdependence serve as mechanisms underlying these effects.
Marriage, Cohabitation, and Sexual Exclusivity: Unpacking the Effect of Marriage
Brandon Wagner
Social Forces, forthcoming
Abstract:
Sexual concurrency, or having temporally overlapping sexual partnerships, has important consequences for relationship quality and individual health, as well as the health and well-being of others embedded in larger sexual networks. Although married and cohabiting couples have similar, almost universal expectations of sexual exclusivity, the former report significantly lower rates of engaging in sexual concurrency than the latter. Given that this difference in behavior occurs despite similar expectations of sexual fidelity, sexual exclusivity can provide an important test of whether marriage has a causal effect on relationship behavior. Using data from the National Longitudinal Study of Adolescent to Adult Health, I estimate an instrumental variable model testing whether observed differences in sexual concurrency between marital and cohabiting relationships are attributable to marriage itself via a recent implementation of the special regressor method, an estimator for binary choice models with endogenous regressors. I find evidence that, relative to cohabitation, marriage reduces the likelihood that an individual will engage in concurrent sexual relationships. Finding an effect of marriage in a recent cohort of young adults suggests that, despite changes in marriage and cohabitation, marriage still influences individual behavior.
On the Prowl: Examining the Impact of Men-as-Predators and Women-as-Prey Metaphors on Attitudes that Perpetuate Sexual Violence
Jarrod Bock & Melissa Burkley
Sex Roles, forthcoming
Abstract:
A common metaphor used to describe heterosexual relationships frames men as predators and women as prey. The present work assessed potential consequences of these metaphoric portrayals. Participants read a heterosexual dating scenario that did or did not metaphorically frame the situation in predator and prey terms. Using a U.S. college undergraduate sample of 120 women and 82 men in Study 1, exposure to these metaphors led to greater rape myth acceptance among men (but not among women). Using a broader sample of 76 women and 72 men via MTurk, Study 2 replicated these results and also found metaphor exposure led to greater rape myth acceptance and rape proclivity. Furthermore, a mediation analysis indicated that men exposed to these metaphors were more likely to accept rape myths, which in turn predicted their self-reported greater rape proclivity. Such results demonstrate the harmful outcomes that can result from describing romantic interactions where men are the predators and women are the prey.
Porn, peers, and performing oral sex: The mediating role of peer norms on pornography’s influence regarding oral sex
Emily Vogels & Lucia O’Sullivan
Media Psychology, forthcoming
Abstract:
The goal of this study was to offer insights into how pornography use might be linked to young adults’ sexual experiences via the mediating role of peer norms (i.e., their perceptions of what same-sex peers do sexually). We focused on oral sex behavior, as it is common in pornography and among young people. Young adults (N = 349; ages 19–30; 54% female) were recruited through a crowdsourcing website. Participants completed an anonymous online survey about the frequency that they observed various sexual behaviors in online pornography, the frequency that they engaged in these behaviors, and their perceptions of the frequency that their peers engaged in these behaviors. Frequency of viewing cunnilingus (men) or fellatio (women) in pornography predicted how often they engaged in oral sex, and this association was mediated by their perceptions of how frequently their peers engaged in oral sex. Peer norms did not mediate how frequently they received oral sex. Findings are discussed in terms of implications for understanding how pornography may relate to young people’s social norms surrounding oral sex and their performance of sexual behaviors, as well as for understanding generally how media consumption relates to adoption of media behaviors through suggesting a social norm.