Khandis R. Blake
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View article: Sex Differences in Perception of Economic and Dating Access
Sex Differences in Perception of Economic and Dating Access Open
Mating and labor markets are fundamental drivers of societal dynamics. Yet, equity of access to these domains differs between the sexes due to numerous biological, economic, psychological, and socio-cultural factors. These inequalities and…
View article: (In)Alienable Worth? Cultural Logics of Dignity, Honor, and Face and their Links to Prosociality Across the World
(In)Alienable Worth? Cultural Logics of Dignity, Honor, and Face and their Links to Prosociality Across the World Open
Cultural logic is a set of cultural scripts and patterns organized around a central theme. The cultural logics of dignity, honor, and face describe different ways of evaluating a person’s worth and maintaining cooperation. These cultural l…
View article: The effect of a physically formidable competitor or cooperator on attraction to violent video games
The effect of a physically formidable competitor or cooperator on attraction to violent video games Open
Typically, men prefer violent video games more than women do. However, little is known about the motivational factors driving this greater preference for violent games in men. The integrative motivational model of violent video games (IMT-…
View article: Why women cheat: testing evolutionary hypotheses for female infidelity in a multinational sample
Why women cheat: testing evolutionary hypotheses for female infidelity in a multinational sample Open
While scholars largely agree men's infidelity evolved by increasing offspring quantity, the evolutionary drivers of women's infidelity remain debated. The "good genes" (dual mating strategy) hypothesis posits infidelity allows women to pai…
View article: High economic inequality is linked to greater moralization
High economic inequality is linked to greater moralization Open
Throughout the 21st century, economic inequality is predicted to increase as we face new challenges, from changes in the technological landscape to the growing climate crisis. It is crucial we understand how these changes in inequality may…
View article: Women in their mid-follicular phase outcompete hormonal contraceptive users, an effect partially explained by relatively greater progesterone and cortisol reactivity to competition
Women in their mid-follicular phase outcompete hormonal contraceptive users, an effect partially explained by relatively greater progesterone and cortisol reactivity to competition Open
Early evidence suggests that hormonal contraceptive (HC) use alters psychological functioning and competitive behavior. Yet, there is limited data on endocrine models for explaining how HC use affects these outcomes. In this pre-registered…
View article: Twitter misogyny associated with Hillary Clinton increased throughout the 2016 U.S. election campaign
Twitter misogyny associated with Hillary Clinton increased throughout the 2016 U.S. election campaign Open
Online misogyny has become a fixture in female politicians’ lives. Backlash theory suggests that it may represent a threat response prompted by female politicians’ counterstereotypical, power-seeking behaviors. We investigated this hypothe…
View article: High economic inequality is linked to greater moralization
High economic inequality is linked to greater moralization Open
Throughout the 21st century, economic inequality is predicted to increase as we face new challenges, from changes in the technological landscape to the growing climate crisis. It is crucial we understand how these changes in inequality may…
View article: Evolutionary ecological insights into the suppression of female sexuality
Evolutionary ecological insights into the suppression of female sexuality Open
The suppression of female sexuality is a widespread phenomenon, which often has harmful effects on the wellbeing of women who are the target of the suppression. Theories that have attempted to explain the origins of the phenomenon have hea…
View article: How intrasexual competitiveness shapes attitudes towards cosmetic surgery recipients
How intrasexual competitiveness shapes attitudes towards cosmetic surgery recipients Open
Cosmetic surgery is extremely popular. Despite this, negative attitudes towards cosmetic surgery recipients prevail. Across two pre-registered studies, we examined whether intrasexual competitiveness explains these negative attitudes. Part…
View article: Not within spitting distance: Salivary immunoassays of estradiol have subpar validity for predicting cycle phase
Not within spitting distance: Salivary immunoassays of estradiol have subpar validity for predicting cycle phase Open
Salivary steroid immunoassays are widely used in psychoneuroendocrinological studies of menstrual cycle phase, puberty, and menopause. Though manufacturers advertise their assays as suitable, they have not been rigorously validated for the…
View article: When fertile, women seek status via prestige but not dominance
When fertile, women seek status via prestige but not dominance Open
Biological predictors of human dominance are hotly contested, with far-reaching implications for psychological sex differences and the placement of men and women in the social hierarchy. Most investigations have focused on dominance in men…
View article: Experimental and cross-cultural evidence that parenthood and parental care motives increase social conservatism
Experimental and cross-cultural evidence that parenthood and parental care motives increase social conservatism Open
Differences in attitudes on social issues such as abortion, immigration and sex are hugely divisive, and understanding their origins is among the most important tasks facing human behavioural sciences. Despite the clear psychological impor…
View article: Effects of gender inequality and wealth inequality on within-sex mating competition under hypergyny
Effects of gender inequality and wealth inequality on within-sex mating competition under hypergyny Open
Documentation of code used for MS: "Effects of gender inequality and wealth inequality on within-sex mating competition under hypergyny", published in Evolution and Human Behavior. https://doi.org/10.1016/j.evolhumbehav.2022.08.006 1. Over…
View article: Fertility predicts self-development-oriented competitiveness in naturally cycling women but not hormonal contraceptive users
Fertility predicts self-development-oriented competitiveness in naturally cycling women but not hormonal contraceptive users Open
Objective A growing body of research has begun investigating the relationship between hormones and female competitiveness. Many researchers have focused on the effect of the menstrual cycle and hormonal contraceptives. Despite many attempt…
View article: Not within spitting distance: salivary immunoassays of estradiol have subpar validity for predicting cycle phase
Not within spitting distance: salivary immunoassays of estradiol have subpar validity for predicting cycle phase Open
Salivary steroid immunoassays are widely used in psychoneuroendocrinological studies of menstrual cycle phase, puberty, and menopause. Though manufacturers advertise their assays as suitable, they have not been rigorously validated for the…
View article: Effects of gender inequality and income inequality on within-sex mating competition under hypergyny
Effects of gender inequality and income inequality on within-sex mating competition under hypergyny Open
Resources are often central to the formation and persistence of human consortships, and to the evolutionary fitness consequences of those consortships. As a result, the distribution of resources within a society should influence the number…
View article: Economic inequality increases race salience in 6 million Tweets
Economic inequality increases race salience in 6 million Tweets Open
Economic inequality brings multiple adverse consequences. These range from decreased trust in government, increased drug abuse and violence, and decreased societal cohesion. If and how economic inequality impacts online behaviors has recei…
View article: Hormonal Contraceptive Use and Cycle Phase Effects on Competitive Persistence: Progesterone as a Mediating Mechanism (Stage 1 Registered Report)
Hormonal Contraceptive Use and Cycle Phase Effects on Competitive Persistence: Progesterone as a Mediating Mechanism (Stage 1 Registered Report) Open
Objectives: Increasing evidence suggests that hormonal contraceptive (HC) use adversely effects psychological functioning and competitiveness. HCs expose women to consistently high doses of synthetic progesterone, a hormone that fluctuates…
View article: Misogynistic Tweets Correlate With Violence Against Women
Misogynistic Tweets Correlate With Violence Against Women Open
How online social behavior covaries with real-world outcomes remains poorly understood. We examined the relationship between the frequency of misogynistic attitudes expressed on Twitter and incidents of domestic and family violence that we…
View article: Male descendant kin promote conservative views on gender issues and conformity to traditional norms
Male descendant kin promote conservative views on gender issues and conformity to traditional norms Open
View article: Prejudice Towards Sex Workers Depends on the Sexual Activity and Autonomy of Their Work, Hobbies and Daily Activities
Prejudice Towards Sex Workers Depends on the Sexual Activity and Autonomy of Their Work, Hobbies and Daily Activities Open
Women are more likely than men to be sexualized, objectified and dehumanized. Female sex workers experience stigma and violence associated with these judgements at far higher rates than other women. Here, we use a pre-registered experiment…
View article: Left / Write // Hook: A mixed method study of a writing and boxing workshop for survivors of childhood sexual abuse and trauma
Left / Write // Hook: A mixed method study of a writing and boxing workshop for survivors of childhood sexual abuse and trauma Open
This article investigates how the combination of writing therapy and embodied empowerment, explored through the physical sport of non-contact boxing, can facilitate the recovery journeys of women survivors of childhood sexual abuse (CSA) a…
View article: “I sexually identify as an Attack Helicopter”: Incels, trolls, and non-binary gender politics online
“I sexually identify as an Attack Helicopter”: Incels, trolls, and non-binary gender politics online Open
Recent public debate on gender identification has provided new alternatives to the traditional binary divergent titles of “man and woman”. Some contributors to this discussion have proposed a more regressive position regarding gender equit…
View article: Prejudice towards sex workers depends on the sexual activity and autonomy of their work, hobbies and daily activities
Prejudice towards sex workers depends on the sexual activity and autonomy of their work, hobbies and daily activities Open
Women are more likely than men to be sexualized, objectified, and dehumanized. Female sex workers experience stigma and violence associated with these judgements at far higher rates than other women. Here, we use a pre-registered experimen…