Universal sex differences in the desire for sexual variety: Tests from 52 nations, 6 continents, and 13 islands.

Evolutionary psychologists have hypothesized that men and women possess both long-term and short-term mating strategies, with men's short-term strategy differentially rooted in the desire for sexual variety. In this article, findings from a cross-cultural survey of 16,288 people across 10 major world regions (including North America, South America, Western Europe, Eastern Europe, Southern Europe, Middle East, Africa, Oceania, South/Southeast Asia, and East Asia) demonstrate that sex differences in the desire for sexual variety are culturally universal throughout these world regions. Sex differences were evident regardless of whether mean, median, distributional, or categorical indexes of sexual differentiation were evaluated. Sex differences were evident regardless of the measures used to evaluate them. Among contemporary theories of human mating, pluralistic approaches that hypothesize sex differences in the evolved design of short-term mating provide the most compelling account of these robust empirical findings. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Human mate poaching: Tactics and temptations for infiltrating existing mateships.

The authors explored the psychology of romantically attracting someone who is already in a relationship—what can be called the process of human mate poaching. In Study 1 (N?=?236), they found that attempts at poaching were relatively common and were linked with distinctive personality dispositions. Study 2 (N?=?220) documented that the perceived costs and benefits of poaching differed somewhat for men and women and depended on whether short-term or long-term poaching outcomes were targeted. Study 3 (N?=?453) found support for 5 evolution-based hypotheses about the perceived effectiveness of poaching tactics. Study 4 (N?=?333) found that poaching effectiveness was influenced by the type of relationship being encroached on—marital, dating, long distance, highly committed, just beginning, or about to end. Discussion focuses on the importance of placing mate poaching within the broader context of human sexual strategies. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

The association between parental warmth and control in thirteen cultural groups.

The goal of the current study was to investigate potential cross-cultural differences in the covariation between two of the major dimensions of parenting behavior: control and warmth. Participants included 1,421 (51% female) 7- to 10-year-old (M = 8.29, SD = .67 years) children and their mothers and fathers representing 13 cultural groups in nine countries in Africa, Asia, Europe, the Middle East, and North and South America. Children and parents completed questionnaires and interviews regarding mother and father control and warmth. Greater warmth was associated with more control, but this association varied widely between cultural groups. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

International variability in ages at menarche, first livebirth, and menopause. World Health Organization Collaborative Study of Neoplasia and Steroid Contraceptives

The occurrences and timing of reproduction-related events, such as menarche, first birth, and menopause, play major roles in a woman's life. There is a lack of comparative information on the overall patterns of the ages at and the timing between these events among different populations of the world. This study describes the variability in reproductive factors across populations in Europe, the Americas, Asia, Australia, and Africa. The study sample consisted of 18,997 women from 13 centers in 11 countries interviewed between 1979 and 1988 who comprised the control group in a World Health Organization international, multicenter case-control study of female cancers. All were surveyed with the same questionnaire and methodology. Overall, a typical woman in this study reached menarche at age 14 years and delivered her first live child 8 years later, at age 22. She was 50 years old at natural menopause and had had 36 years of reproductive life. The median ages at menarche varied across centers from 13 to 16 years. For all centers, the median age at first livebirth was 20 or more years, with the largest observed median (25 years) occurring in China. The median delay from menarche to first livebirth ranged from 5 to 11 years. Among the centers, the median age at natural menopause ranged between 49 and 52 years. In most populations, younger women had a first birth at a later age than did older women. This tendency was more accentuated in some populations. These results reveal, perhaps for the first time, the variability of reproductive histories across different populations in a large variety of geographic and cultural settings. Except for menopause, international variability is substantial for both biologically related variables (age at menarche) and culturally related variables (age at first birth). There is a generational effect, characterized by more variability of age at first birth and delay to first birth in the younger than in the older generations.     

Gender differences in the negative affective priming of aggressive behavior.

The negative affective priming of aggression was examined across different aversive contexts (general stress exposure and frustration) with a laboratory aggression paradigm that measured the intensity of shocks participants delivered to a putative employee. Participants' emotional responses were gauged via startle eyeblink reactions and self-report mood ratings. Aside from gender differences in overall aggression, men but not women exposed to general stress showed significant increases in aggression across blocks. However, frustration produced increases in aggression in both genders. Although both genders showed robust startle increases during stress, startle activation was related to increases in aggression in men and decreases in aggression in women. These findings suggest that general stress and experiences of negative emotion trigger physical aggressive responses more strongly in men than in women. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A 20-year longitudinal study of body weight, dieting, and eating disorder symptoms.

The article describes a 20-year longitudinal study of body weight, dieting, and disordered eating in women and men. Body weight increased significantly over time in both women and men. However, women's weight perception and dieting frequency decreased over time, whereas men's weight perception and dieting frequency increased, and disordered eating declined more in women than in men from late adolescence to midlife. In both women and men, changes in weight perception and dieting frequency were associated with changes in disordered eating. In addition, adult roles such as marriage and parenthood were associated with significant decreases in disordered eating from late adolescence to midlife in women, whereas few associations were observed in men. Despite different developmental trajectories, women demonstrated more weight dissatisfaction, dieting, and disordered eating compared with men across the period of observation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Variations of emotional display rules within and across cultures: A comparison between Canada, USA, and Japan.

This study investigates emotional display rules for seven basic emotions. The main goal was to compare emotional display rules of Canadians, US Americans, and Japanese across as well as within cultures regarding the specific emotion, the type of interaction partner, and gender. A total of 835 university students participated in the study. The results indicate that Japanese display rules permit the expression of powerful (anger, contempt, and disgust) significantly less than those of the two North American samples. Japanese also think that they should express positive emotions (happiness, surprise) significantly less than the Canadian sample. Furthermore, Japanese varied the display rules for different interaction partners more than the two North American samples did only for powerful emotions. Gender differences were similar across all three cultural groups. Men expressed powerful emotions more than women and women expressed powerless emotions (sadness, fear) and happiness more than men. Depending on the type of emotion and interaction partner some shared display rules occurred across culture and gender. The implications of these findings are discussed in relation to cultural dimensions and other cultural characteristics. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Sex, group composition, and the efficacy of group interventions to promote forgiveness.

In an extension of a prior investigation of the efficacy of group treatments to promote forgiveness, the present study examined whether participant sex and group composition predicted forgiveness-related outcomes. Multilevel hierarchical regression analyses were used to analyze data from 144 participants who completed a 2-week, 6-hour group intervention. Women reported significantly more decreases in the desire for revenge when compared to men. Group composition also was related to outcome, such that the more men who were in a group, the more likely women were to diminish desires for revenge and the less likely men were to cultivate empathy for their offenders. Implications and directions for future research are offered. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Marital satisfaction, recovery from work, and diurnal cortisol among men and women.

Design: Multilevel modeling was used to model relationships between salivary cortisol, daily diary ratings of work experiences, and Marital Adjustment Test scores (Locke & Wallace, 1959), in a sample of 60 adults who sampled saliva 4 times per day over 3 days. Results: Among women but not men, marital satisfaction was significantly associated with a stronger basal cortisol cycle, with higher morning values and a steeper decline across the day. For women but not men, marital satisfaction moderated the within-subjects association between afternoon and evening cortisol level, such that marital quality appeared to bolster women's physiological recovery from work. For both men and women, evening cortisol was lower than usual on higher-workload days, and marital satisfaction augmented this association among women. Men showed higher evening cortisol after more distressing social experiences at work, an association that was strongest among men with higher marital satisfaction. Conclusion: This work has implications for the study of physiological recovery from work, and also suggests a pathway by which marital satisfaction influences allostatic load and physical health. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Worldwide variations in prevalence of symptoms of allergic rhinoconjunctivitis in children: the International Study of Asthma and Allergies in Childhood (ISAAC)

BACKGROUND: As part of the International Study of Asthma and Allergies in Childhood (ISAAC), prevalence surveys were conducted among representative samples of school children from locations in Europe, Asia, Africa, Australia, North and South America. SUBJECTS: 257,800 children aged 6-7 years from 91 centres in 38 countries, and 463,801 children aged 13-14 years from 155 centres in 56 countries. METHODS: Written symptom questionnaires were translated from English into the local language for self-completion by the 13-14-year-olds and completion by the parents of the 6-7-year-olds. Rhinitis was described as a problem with sneezing, or a runny, or blocked nose when you (your child) DID NOT have a cold or the flu. Additional questions were asked about rhinitis associated with itchy-watery eyes, interference with activities and a history of hay fever ever. RESULTS: The prevalence of rhinitis with itchy-watery eyes ("rhinoconjunctivitis") in the past year varied across centres from 0.8% to 14.9% in the 6-7-year-olds and from 1.4% to 39.7% in the 13-14-year-olds. Within each age group, the global pattern was broadly consistent across each of the symptom categories. In centres of higher prevalence there was great variability in the proportion of rhinoconjunctivitis labelled as hay fever. The lowest prevalences of rhinoconjunctivitis were found in parts of eastern Europe, south and central Asia. High prevalences were reported from centres in several regions. CONCLUSION: These results suggest substantial worldwide variations in the prevalence and labelling of symptoms of allergic rhinoconjunctivitis which require further study. These differences, if real, may offer important clues to environmental influences on allergy.     

Cross-Situational Consistency of Affective Experiences Across Cultures.

This study examined cross-situational consistency of affective experiences using an experience-sampling method in Japan, India, and the United States. Participants recorded their moods and situations when signaled at random moments for 7 days. The authors examined relative (interindividual) consistency and absolute (within-person) consistency. They found stable interindividual differences of affective experiences across various situations (mean r = .52 for positive affect .51 for negative affect) and cultural invariance of the cross-situational consistency of affective experiences. Simultaneously, the authors found a considerable degree of within-person cross-situational variation in affective experiences, and cultural differences in within-person cross-situational consistency. Thus, global affective traits exist among non-Western samples, but the degree to which situations exert an influence on the absolute level of affective experience varies across cultures. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Culture, gender, and the self: Variations and impact of social comparison processes.

Psychological differences between women and men, far from being invariant as a biological explanation would suggest, fluctuate in magnitude across cultures. Moreover, contrary to the implications of some theoretical perspectives, gender differences in personality, values, and emotions are not smaller, but larger, in American and European cultures, in which greater progress has been made toward gender equality. This research on gender differences in self-construals involving 950 participants from 5 nations/cultures (France, Belgium, the Netherlands, the United States, and Malaysia) illustrates how variations in social comparison processes across cultures can explain why gender differences are stronger in Western cultures. Gender differences in the self are a product of self-stereotyping, which occurs when between-gender social comparisons are made. These social comparisons are more likely, and exert a greater impact, in Western nations. Both correlational and experimental evidence supports this explanation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Gender differences in experiences of sexual harassment: Data from a male-dominated environment.

The goal of this investigation was to examine gender differences in experiences of sexual harassment during military service and the negative mental health symptoms associated with these experiences. Female (n = 2,319) and male (n = 1,627) former reservists were surveyed about sexual harassment during their military service and current mental health symptoms. As expected, women reported a higher frequency of sexual harassment. Further, women had increased odds of experiencing all subtypes of sexual harassment. Being female conferred the greatest risk for experiencing the most serious forms of harassment. For both men and women, sexual harassment was associated with more negative current mental health. However, at higher levels of harassment, associations with some negative mental health symptoms were stronger for men than women. Although preliminary, the results of this investigation suggest that although women are harassed more frequently than men, clinicians must increase their awareness of the potential for sexual harassment among men in order to provide the best possible care to all victims of harassment. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Distribution and prevalence of Anguillicola crassus (Nematoda) in eels Anguilla anguilla of the rivers Rhine and Naab, Germany

The distribution of apolipoprotein E (apo E) polymorphism was examined in 11 population groups not previously studied for this system. There is a marked difference in phenotype and gene frequency between the populations of England and Spain. The south European populations of Basques and Spanish non-Basques showed greater similarity to the populations of South Asia. The study clearly indicates that the distribution of apo E alleles does match with regions showing a high mortality rate of coronary heart disease. The data presented also indicate that authochthon groups such as Basques in Europe and tribals in India may throw better light on the role of apolipoproteins in the regulation of lipid levels in disease.     

Parental identification, acceptance of authority, and within-sex differences in cognitive behavior.

Male and female college students were compared in regard to their cognitive behavior (Witkin's Embedded Figure Test [see 28: 8566]), and this related to parental identification and acceptance of authority. It was hypothesized that Ss who identify with fathers would also be more field-dependent and demonstrate a low degree of acceptance of authority. The groups were not differentiated on the above characteristics as regards their sex; more women than men in this sample identified with father and vice versa. Acceptance of authority and field-dependence/independence were significantly correlated. The hypotheses were only partially supported. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Perceived proposer personality characteristics and gender differences in acceptance of casual sex offers.

In a highly influential paper, Clark and Hatfield (1989) demonstrated that, whereas men were quite likely to accept a casual sexual offer from a confederate research assistant, women never did so. The current research provides a more in-depth explanation of gender differences in acceptance of casual sex offers via 4 (quasi-) experiments. First, using a person-perception paradigm, I assessed people's impressions of women and men who proposed a casual sexual encounter in the same manner that confederates in Clark and Hatfield did. Women and men agreed that female proposers were more intelligent, successful, and sexually skilled than men who made the same proposals. Second, I demonstrated that the large gender differences from the original Clark and Hatfield study could be eliminated by asking participants to imagine proposals from (attractive and unattractive) famous individuals, friends, and same-gender individuals. Next, I assessed factors associated with likelihood of agreeing to the casual sex proposal. The extent to which women and men believed that the proposer would be sexually skilled predicted how likely they would be to engage in casual sex with this individual. Finally, I examined these factors in the context of actual encounters from the participants' previous experiences, and the results were replicated in this context. Overall findings suggest that the large gender differences Clark and Hatfield observed in acceptance of the casual sex offer may have more to do with perceived personality characteristics of the female versus male proposers than with gender differences among Clark and Hatfield's participants and that sexual pleasure figures largely in women's and men's decision making about casual sex. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Diverse faculty in STEM fields: Attitudes, performance, and fair treatment.

In an attempt to address concerns regarding the experiences of academic faculty who are members of often-marginalized groups (e.g., women and ethnic/racial minorities), a climate survey of faculty members at a large public university was developed as part of a larger effort to improve aspects of the policies, procedures, and work climate. Multivariate analysis of variance revealed differences in performance-related variables and equality of treatment for women and racial/ethnic minorities working in the STEM (science, technology, engineering, and mathematics) fields. Women in STEM fields and racial/ethnic minority non-STEM faculty generally reported more negative experiences, while ethnically diverse STEM faculty generally reported more positive experiences. The differential composition of the racial/ethnic minority STEM and non-STEM groups is thought to explain the discrepant findings between these 2 groups. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Stressful life events, gender, and substance use: An application of tobit regression.

Extended research on stressful life events (SLEs) and substance use by examining gender differences in the relationship between SLEs and the use of 4 substances, determining whether SLEs were uniquely related to each type of substance use, and using tobit regression analysis to increase statistical conclusion validity. Data were obtained from 606 men and 1,001 women (all Ss aged 19–65 yrs) who were interviewed and responded to a questionnaire. Analyses revealed that the magnitude of the positive relationship between SLEs and cigarette use did not differ across men and women, whereas SLEs were unrelated to illicit drug use among both men and women. In contrast, SLEs were more strongly related to alcohol use among men, whereas they were more strongly related to psychotherapeutic drug use among women. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Mathematically facile adolescents with math-science aspirations: New perspectives on their educational and vocational development.

This longitudinal study tracked 1,110 adolescents identified as mathematically precocious at Age 13 (top 1%) with plans for a math-science undergraduate major. Participants' high school educational experiences, abilities, and interests predicted whether their attained undergraduate degrees were within math-science or nonmath-nonscience areas. More women than men eventually completed undergraduate degrees outside math-science, but many individuals who completed nonmath-nonscience degrees ultimately chose math-science occupations (and vice versa). At Age 33, the 2 degree groups reported commensurate and uniformly high levels of career satisfaction, success, and life satisfaction. Assessing individual differences is critical for modeling talent development and life satisfaction; it reveals that equal male-female representation across disciplines may not be as simple to accomplish as many policy discussions imply. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Longitudinal examination of the psychosocial costs of racism to Whites across the college experience.

This longitudinal investigation adds to the growing body of scholarship on the psychosocial costs of racism to Whites, which refer to the consequences of being in the dominant position in an unjust, hierarchical system of societal racism. We examined how White students' affective costs of racism (i.e., White empathy, guilt, and fear) changed across the college experience and how gender, colorblind racial ideology, and diversity experiences were associated with those costs. Findings indicated that White empathy, guilt, and fear each had a distinct trajectory of change across the college experience. Moreover, patterns of change for each cost were moderated by colorblind racial attitude scores at college entrance. We also found that participation in college diversity experiences (e.g., diversity courses) was associated with the costs; moreover, different types of diversity experiences were linked to particular costs. These findings provide insight into the affective experiences of White students across college and thus may be useful to counseling psychologists and educators who design and implement programs and policies to enhance diversity education. (PsycINFO Database Record (c) 2011 APA, all rights reserved)