Confidence interval estimation for the population coefficient of variation using ranked set sampling: a simulation study

In this paper, an evaluation of the performance of several confidence interval estimators of the population coefficient of variation (τ) using ranked set sampling compared to simple random sampling is performed. Two performance measures are used to assess the confidence intervals for τ, namely: width and coverage probabilities. Simulated data were generated from normal, log-normal, skew normal, Gamma, and Weibull distributions with specified population parameters so that the same values of τ are obtained for each distribution, with sample sizes n=15, 20, 25, 50, 100. A real data example representing birth weight of 189 newborns is used for illustration and performance comparison.     

A parent gesture intervention as a means to increase parent declarative pointing and child vocabulary

This study examined whether a brief parent gesture training resulted in a change in the communicative intent of pointing gestures used by parents of infants from age 10–12 months and whether specific types of points (declarative vs. imperative) were more or less likely to predict later child language skill at 18 months. Compared to parents who were randomized to the control group, parents in the intervention group produced significantly more declarative pointing gestures as a result of the intervention. Moreover, parents’ use of declarative points at 12 months was predictive of later child vocabulary comprehension at 18 months. These findings suggest that a short-term parent training can have important effects on the communicative intentions conveyed through gesture which predict vocabulary development.     

An Overview of Problematic Eating and Food-Related Behavior Among Foster Children: Definitions, Etiology, and Intervention

Although several studies have identified problematic eating and food-related behaviors (e.g., Bulimia Nervosa, hoarding, obesity) as significant concerns among children in foster care, there is little evidence-based guidance on how practitioners may appropriately identify and treat children with these concerns. The current review describes the scope of eating and food-related difficulties among foster children, discusses potential etiological factors associated with these behaviors, reviews prevention and intervention strategies, and highlights implications for future research. All of these topics are aimed toward child welfare workers who are likely to encounter these eating patterns in practice. In addition to addressing problematic behaviors, this review also incorporates strategies for the promotion of healthy nutrition among families in the welfare system.     

Implicit theories of leadership: Stability and change over two decades

Much has changed in the last 20 years, but have people's naïve conceptions of leaders changed as well? Paralleling Offermann et al.'s (1994) study of the content of implicit leadership theories with new samples, the present study investigates ILT stability and change across a 20-year period. Results indicate that, as in 1994, Sensitivity, Dedication, Tyranny, Charisma, Strength, Masculinity, and Intelligence were confirmed as ILT factors. Analyses revealed a new factor, Creativity, and the rearranging of some characteristics across factors. The nine-factor, 46-item scale was confirmed with an independent sample, yielding superior fit indices to the eight-factor solution. This supports the view of ILTs as having both remarkably stable elements despite organizational and societal changes as well as contextually-sensitive elements. Open-ended characteristics had no references to females despite reference to males, as in 1994; thus, “think leader, think male” appears to persist in terms of naïve conceptions of leadership.     

Examining the Relationship between Childhood Sexual Abuse and Borderline Personality Disorder: Does Social Support Matter?

The relationship between childhood sexual abuse and borderline personality disorder is a prominent issue in the etiological research on borderline personality disorder. This study further explored the relationship between childhood sexual abuse and the development of borderline personality features while evaluating the moderating role of a primary social support source in a sample of 290 female undergraduate students enrolled at a major southeastern university. Consistent with previous research, retrospective self-reports of childhood sexual abuse and low social support were both positively correlated with current borderline personality features. It was hypothesized that the presence of a supportive relationship at the time the childhood sexual abuse occurred would moderate the relationship between childhood sexual abuse and borderline personality features. This moderation hypothesis was not supported in the current study, but post-hoc analyses reveal the need to further examine how we define social support following childhood sexual abuse. This research is a stepping stone toward the prevention of borderline personality disorder following childhood sexual abuse.     

The Interactive Impacts of High School Gay-Straight Alliances (GSAs) on College Student Attitudes Toward LGBT Individuals: An Investigation of High School Characteristics

Although gay-straight alliances (GSAs) are becoming more popular in high schools across the U.S., empirical studies investigating GSAs and their impact are sparse. Utilizing a sample of college students drawn from a large Southern university (N = 805; 78% White; 61% female; average age 22), the current study investigates the ways that the presence of high school GSAs affect college student attitudes toward LGBT individuals and how these relationships may vary by high school GSA location (South vs. non-South), town type (rural/small town, suburban, large city), and high school student population size. Overall, results from the current study show that the presence of a GSA in high school is a robust positive predictor of supportive attitudes toward LGBT individuals, even when considering many control variables. Such results suggest that the presence of GSAs in high schools may have significant positive and potentially long-lasting effects on college students’ attitudes toward LGBT individuals.     

Hakan Seckinelgin. International Security,Conflict and Gender: ‘HIV/AIDS is another war’

This article does not have an abstract     

Effects of Genital Response Measurement Device and Stimulus Characteristics on Sexual Concordance in Women

Investigations of sexual concordance suggest that, on average, women exhibit a low, positive correlation between their subjective sexual arousal and genital response. However, this relationship appears to be stronger, on average, when genital response is measured via the external tissues of the vulva than within the vagina walls. Given the methodological variations, such as stimulus content and duration, in studies of vulvar and vaginal concordance, direct comparisons between individual studies are limited. In the current study, sexual concordance was examined using concurrent measures of vulvar blood flow (using laser Doppler imaging) and vaginal vasocongestion (using vaginal photoplethysmography) to investigate potential differences in vulvar and vaginal concordance. Twenty-five women viewed two erotic films that differed in sexual activity content (foreplay and intercourse) while their subjective sexual arousal and genital response was measured. In support of previous meta-analytic findings, results suggest that subjective sexual arousal is more strongly correlated with vulvar blood flow than with vaginal vasocongestion. Likewise, perceived genital response and actual vulvar blood flow are more strongly related than are vaginal vasocongestion and self-reported genital sensations. Practical implications for the study of women’s sexual concordance as well as broader implications for the understanding of female sexuality are considered.     

Coming out and coming back: Rural gay migration and the city

This research focuses on the complex meaning and role of the city in American and French rural gay men’s imaginary and life experience. It explores how gay men who grew up in the country build their sense of self through back-and-forth movement from rural to urban spaces. Therefore, it questions traditional gay migration studies, which have often equated gay migration and rural–urban migration, positing a unidirectional pattern. After contextualizing rural male homosexuality, this paper presents four life itineraries which highlight the central role the city has for rural gay men when exploring their same-sex desires and attractions. Based on the analysis of their life narratives, we show that for most of them, their coming out, their first same-sex experience, and coming to terms with their sexuality happens “far from home” in a city or a college town. However, this research suggests that the city has a more ambivalent role for rural gay men. While the city exists as a space of social practices where alternative sexualities can be experienced and explored, at the same time for many rural gay men the city remains substantially unattractive. In their view, the perceived “effeminizing power” of the city questions and challenges their attraction for this space. Therefore, the experience of the city becomes both liberating and disciplinary – liberating because it allows the exploration of their same-sex desires and attractions, disciplinary because it (re)presents a gay identity in which they find no resonance. Thus this research indicates that rural gay migration to the urban spaces, which is key to identity formation, includes not only departure to the city but also a necessary return to the country to maintain rural gay men’s understanding of themselves.