Do assortative preferences contribute to assortative mating for adiposity?

Assortative mating for adiposity, whereby levels of adiposity in romantic partners tend to be positively correlated, has implications for population health due to the combined effects of partners' levels of adiposity on fertility and/or offspring health. Although assortative preferences for cues of adiposity, whereby leaner people are inherently more attracted to leaner individuals, have been proposed as a factor in assortative mating for adiposity, there have been no direct tests of this issue. Because of this, and because of recent work suggesting that facial cues of adiposity convey information about others' health that may be particularly important for mate preferences, we tested the contribution of assortative preferences for facial cues of adiposity to assortative mating for adiposity (assessed from body mass index, BMI) in a sample of romantic couples. Romantic partners' BMIs were positively correlated and this correlation was not due to the effects of age or relationship duration. However, although men and women with leaner partners showed stronger preferences for cues of low levels of adiposity, controlling for these preferences did not weaken the correlation between partners' BMIs. Indeed, own BMI and preferences were uncorrelated. These results suggest that assortative preferences for facial cues of adiposity contribute little (if at all) to assortative mating for adiposity.     

Functional communication training to replace challenging behaviors across two behavioral outcomes

The purpose of the present study was to demonstrate the effectiveness of an intervention that included extinction and functional communication training for the reduction of multiply controlled, self‐injurious, and aggressive behaviors in a boy with autism, in a school setting. Analysis of behavioral antecedents and consequences suggested that self‐injury and aggression served the dual behavioral outcomes of escape from difficult tasks, and access to preferred objects. Treatment consisted of teaching the boy an alternate request, while challenging behaviors were concurrently placed on extinction. Acquisition of the alternate requests was associated with a decrease to zero levels of self‐injury and aggression across the two behavioral outcomes, which was maintained when a 5 second delay was implemented. Results indicate that challenging behaviors with different behavioral outcomes can be replaced with functionally equivalent communication. Copyright © 2000 John Wiley & Sons, Ltd.     

TO NOD OR NOT TO NOD: AN OBSERVATIONAL STUDY OF NONVERBAL COMMUNICATION AND STATUS IN FEMALE AND MALE COLLEGE STUDENTS

Gender studies show that women and men communicate using different styles, but may use either gender style if there are situational status differences. Considering the universal gesture of head nodding as a submissive form of expression, this study investigated head nodding by observing female and male college students in positions of subordinate and equal status. We observed head nodding ( N = 452) in classroom interactions between professor–student and student–student dyads. Overall, women nodded more than men and students nodded more to professors speaking than peers speaking. In addition, female and male students nodded equally to professors speaking, but men nodded less to peers speaking than did women. Thus, both men and women attended to the status and not the gender of the speaker. Future research using varying contexts should further examine the effects of dominance, context, and gender.