David A. Frederick

The Attractive Female Body Weight and Female Body Dissatisfaction in 26 Countries Across 10 World Regions: Results of the International Body Project I

This study reports results from the first International Body Project (IBP-I), which surveyed 7,434 individuals in 10 major world regions about body weight ideals and body dissatisfaction. Participants completed the female Contour Drawing Figure Rating Scale (CDFRS) and self-reported their exposure to Western and local media. Results indicated there were significant cross-regional differences in the ideal female figure and body dissatisfaction, but effect sizes were small across high-socioeconomic-status (SES) sites. Within cultures, heavier bodies were preferred in low-SES sites compared to high-SES sites in Malaysia and South Africa (ds = 1.94-2.49) but not in Austria. Participant age, body mass index (BMI), and Western media exposure predicted body weight ideals. BMI and Western media exposure predicted body dissatisfaction among women. Our results show that body dissatisfaction and desire for thinness is commonplace in high-SES settings across world regions, highlighting the need for international attention to this problem.

Why Is Muscularity Sexy? Tests of the Fitness Indicator Hypothesis

Evolutionary scientists propose that exaggerated secondary sexual characteristics are cues of genes that increase offspring viability or reproductive success. In six studies the hypothesis that muscularity is one such cue is tested. As predicted, women rate muscular men as sexier, more physically dominant and volatile, and less committed to their mates than nonmuscular men. Consistent with the inverted-U hypothesis of masculine traits, men with moderate muscularity are rated most attractive. Consistent with past research on fitness cues, across two measures, women indicate that their most recent short-term sex partners were more muscular than their other sex partners (ds = .36, .47). Across three studies, when controlling for other characteristics (e.g., body fat), muscular men rate their bodies as sexier to women (partial rs = .49-.62) and report more lifetime sex partners (partial rs = .20-.27), short-term partners (partial rs = .25-.28), and more affairs with mated women (partial r = .28).

Desiring the Muscular Ideal: Men's Body Satisfaction in the United States, Ukraine, and Ghana

Failure to achieve a lean and muscular build, a prominent characteristic of masculinity for many men, may lead to body dissatisfaction. In four studies the authors used silhouette measures to assess men’s satisfaction with their muscularity and body fat. Across studies, many U.S. men (51‐71%) were not satisfied with their body fat level. Further, over 90% of U.S. undergraduate men wanted to be more muscular, as did many Ukrainian (69%) and Ghanaian (49%) men. In the United States, men’s ratings of their current and ideal muscularity were associated with endorsement of the male role, and many men desired increased muscularity for reasons related to increased dominance and attractiveness to women. These results suggest widespread desire for increased muscularity among men.

Do representations of male muscularity differ in men's and women's magazines?

We present a second-order Godunov algorithm for multidimensional, ideal MHD. Our algorithm is based on the unsplit formulation of Colella (J. Comput. Phys. vol. 87, 1990), with all of the primary dependent variables centered at the same location. To properly represent the divergence-free condition of the magnetic fields, we apply a discrete projection to the intermediate values of the field at cell faces, and apply a filter to the primary dependent variables at the end of each time step. We test the method against a suite of linear and nonlinear tests to ascertain accuracy and stability of the scheme under a variety of conditions. The test suite includes rotated planar linear waves, MHD shock tube problems, low-beta flux tubes, and a magnetized rotor problem. For all of these cases, we observe that the algorithm is second-order accurate for smooth solutions, converges to the correct weak solution for problems involving shocks, and exhibits no evidence of instability or loss of accuracy due to the possible presence of non-solenoidal fields.

Does Size Matter? Men's and Women's Views on Penis Size Across the Lifespan

The media equate a man’s penis size with his power and masculinity. Views about penis size were assessed in an Internet survey of 52,031 heterosexual men and women. Most men (66%) rated their penis as average, 22% as large, and 12% as small. Self-reported penis size was correlated positively with height and negatively with body fat level. Whereas 85% of women were satisfied with their partner’s penis size, only 55% of men were satisfied with their penis size, 45% wanted to be larger, and 0.2% wanted to be smaller. Satisfaction did not vary across age groups from 18 to 65. Men reporting a larger-than-average penis rated their appearance most favorably, suggesting a possible confidence effect of perceived large penis size.

Interest in cosmetic surgery and body image: views of men and women across the lifespan.

Background: Little is known about interest in cosmetic surgery among the general public or how this interest is related to gender, age, relationship status, body mass index, or body image satisfaction. Methods: The present study tested these associations among a sample of 52,677 heterosexual men and women aged 18 to 65 years who completed the online “ELLE/MSBNC.com Sex and Body Image Survey” in 2003. Results: Many women were interested (48 percent) or possibly interested (23 percent) in cosmetic surgery. A substantial minority of men were also interested (23 percent) or possibly interested (17 percent) in cosmetic surgery. Individuals interested in cosmetic surgery did not report poorer global body image than individuals not interested in cosmetic surgery. Individuals specifically interested in liposuction, however, tended to have poorer body image, and interest in liposuction was greater among heavier individuals. Conclusions: The finding that many women and men are interested in cosmetic surgery has implications for research comparing cosmetic surgery patients to individuals drawn from the general population. Specifically, researchers conducting comparative studies should recognize that many individuals in their control group may be strongly interested in cosmetic surgery, even if they have not yet had any. Furthermore, individuals interested in different types of cosmetic surgery may differ from each other on such attributes as body mass index and body image.

Development and validation of the Sociocultural Attitudes Towards Appearance Questionnaire-4 (SATAQ-4).

The Sociocultural Attitudes Towards Appearance Questionnaire-3 (SATAQ-3) and its earlier versions are measures designed to assess societal and interpersonal aspects of appearance ideals. Correlational, structural equation modeling, and prospective studies of the SATAQ-3 have shown consistent and significant associations with measures of body image disturbance and eating pathology. In the current investigation, the SATAQ-3 was revised to improve upon some conceptual limitations and was evaluated in 4 U.S. and 3 international female samples, as well as a U.S. male sample. In Study 1, exploratory and confirmatory factor analyses for a sample of women from the Southeastern United States (N = 859) indicated a 22-item scale with 5 factors: Internalization: Thin/Low Body Fat, Internalization: Muscular/Athletic, Pressures: Family, Pressures: Media, Pressures: Peers. This scale structure was confirmed in 3 independent and geographically diverse samples of women from the United States (East Coast N = 440, West Coast N = 304, and North/Midwest N = 349). SATAQ-4 scale scores demonstrated excellent reliability and good convergent validity with measures of body image, eating disturbance, and self-esteem. Study 2 replicated the factorial validity, reliability, and convergent validity of the SATAQ-4 in an international sample of women drawn from Italy, England, and Australia (N = 362). Study 3 examined a sample of college males from the United States (N = 271); the 5-factor solution was largely replicated, yet there was some evidence of an underlying structure unique to men. Future research avenues include additional item testing and modification of the scale for men, as well as adaptation of the measure for children and adolescents.

The Science of Sex Appeal: An Evolutionary Perspective

Growing evidence shows that features we find attractive in members of the opposite sex signal important underlying dimensions of health and reproductive viability. It has been discovered that men with attractive faces have higher quality sperm, women with attractive bodies are more fertile, men and women with attractive voices lose their virginity sooner, men who spend more money than they earn have more sex partners, and lap dancers make more tips when they are in the fertile phase of their menstrual cycle. This paper highlights recent evidence showing that the way we perceive other people has been shaped by our evolutionary history. An evolutionary approach provides a powerful tool for understanding the consistency and diversity of mating preferences and behaviors across individuals and cultures.

Can Manipulations of Cognitive Load Be Used to Test Evolutionary Hypotheses

D. DeSteno, M. Y. Bartlett, J. Braverman, and P. Salovey proposed that if sex-differentiated responses to infidelity are evolved, then they should be automatic, and therefore cognitive load should not attenuate them. DeSteno et al. found smaller sex differences in response to sexual versus emotional infidelity among participants under cognitive load, an effect interpreted as evidence against the evolutionary hypothesis. This logic is faulty. Cognitive load probably affects mechanisms involved in simulating infidelity experiences, thus seriously challenging the usefulness of cognitive load manipulations in testing hypotheses involving simulation. The method also entails the assumption that evolved jealousy mechanisms are necessarily automatic, an assumption not supported by theory or evidence. Regardless of how the jealousy debate is eventually settled, cognitive load manipulations cannot rule out the operation of evolved mechanisms.

The Barbie Mystique: Satisfaction with Breast Size and Shape across the Lifespan

ABSTRACT The prevalence of breast augmentation and breast lift surgery suggests that many women are dissatisfied with their breasts. This study analyzed womens and mens views about breast size and shape among 52,227 heterosexual adults, ages 18–65, who responded to an online survey. Although most women (70%) were dissatisfied with the size or shape of their breasts, most men (56%) were satisfied with their partners breasts. Younger and thinner women worried that their breasts were too small; older and heavier women were more concerned with breast droopiness. Women who were dissatisfied with their breasts were more likely to report lower body satisfaction and to express concern about wearing a bathing suit in public. Further, dissatisfied women were also less willing to undress in front of their partner and were more likely to conceal their breasts from their partner during sex. These findings suggest that dissatisfaction with breasts is widespread among adult women.