Robust Confidence Intervals for the Bernoulli Parameter

Despite the simplicity of the Bernoulli process, developing good confidence interval procedures for its parameter—the probability of success p—is deceptively difficult. The binary data yield a discrete number of successes from a discrete number of trials, n. This discreteness results in actual coverage probabilities that oscillate with the n for fixed values of p (and with p for fixed n). Moreover, this oscillation necessitates a large sample size to guarantee a good coverage probability when p is close to 0 or 1.

It is well known that the Wilson procedure is superior to many existing procedures because it is less sensitive to p than any other procedures, therefore it is less costly. The procedures proposed in this article work as well as the Wilson procedure when 0.1 ≤p ≤ 0.9, and are even less sensitive (i.e., more robust) than the Wilson procedure when p is close to 0 or 1. Specifically, when the nominal coverage probability is 0.95, the Wilson procedure requires a sample size 1, 021 to guarantee that the coverage probabilities stay above 0.92 for any 0.001 ≤ min {p, 1 ?p} <0.01. By contrast, our procedures guarantee the same coverage probabilities but only need a sample size 177 without increasing either the expected interval width or the standard deviation of the interval width.     

Social work stories: situated views and larger visions in disciplinary scholarship and education

ABSTRACT

This paper is about the changing imaginations of social work in an increasingly entangled world. It is also about the ways in which literatures shared across time and space encourage us to identify with larger collectivities. My central argument is that if social work is to find a larger vision in the wake of the failure of a range of modern progress narratives, we must engage differently with the challenge posed by multiplying and sometimes conflicting knowledge communities. Thinking with contemporary debates in transdisciplinary critical social theory, I nominate and explore a number of alternative heuristics—‘generational problematic,’ ‘translational space,’ and ‘imagined communities’—in support of future work on the uneven temporal and spatial communities of affiliation that reproduce and change what social work is, or could be, about. I conclude with theoretical suggestions, and some thoughts toward how social work education might better support incoming generations to locate themselves within the broader life-course of the discipline and profession.     

Evaluation of single and mixed verbal operant arrangements for teaching mands and tacts

The purpose of this series of experiments was to evaluate the effects of mixed mand-tact arrangements on the acquisition of mands and tacts in preschool-aged children. In Experiment 1, the effects of three training arrangements (mand-only training, tact-only training, and mand-tact training) were investigated with 3 typically developing children. Rates of acquisition in single (mand-only and tact-only) versus mixed (mand-tact) presentation were comparable, in contrast to earlier investigations. Experiment 2 attempted to clarify the equivocal findings of Experiment 1 by directly replicating the Carroll and Hesse (1987) investigation with 2 typically developing children. Results again demonstrated no clear benefit of mixed verbal operant training on tact acquisition. In Experiment 3, these same arrangements were evaluated with a boy with autism and included assessments to determine that a relevant establishing operation was in effect prior to each mand training session. Experiment 3 again failed to demonstrate the facilitative effects of mand-tact training on the acquisition of mands or tacts. Taken together, the data from these three experiments fail to support the improved efficiency of mand-tact training suggested by prior studies. Findings are discussed in the context of future research investigating mixed verbal operant arrangements.     

College Women's Sexual Decision Making: Cognitive Mediation of Alcohol Expectancy Effects

Abstract

Objective: Alcohol has been linked to a variety of risky sexual practices, including inconsistent condom use. Due to the high rates of alcohol consumption among underage college women, greater understanding of the role of alcohol in young women's sexual decision making is warranted. Participants and Methods: Female underage (18- to 20-year-old) social drinkers (N = 94) participated in an experiment in which they projected themselves into a written hypothetical sexual situation with a new partner. One half of the situations portrayed alcohol consumption; one half did not involve alcohol consumption. Their appraisals of the situation's sexual potential, impelling and inhibiting cognitions, and sexual behavior intentions were assessed. Results: Results revealed that alcohol's expectancy effects on young women's unprotected sexual intentions were mediated by their cognitive appraisals of the situation. Conclusions: These findings indicate that alcohol expectancies and their influence on women's sexual decisions should be incorporated into sexual risk reduction efforts.     

Women’s perceptions of how their dyslexia impacts on their mothering

Women with children have been depicted as struggling to justify themselves in the shadow of intensive mothering ideology. However, little is said about women who have a disability such as dyslexia, and how disability may intersect with intensive mothering ideology to present additional challenges. In this paper, life-story interviews are drawn upon to start to unpack the ways in which mothering and dyslexia may intersect. The themes discussed include: fear and perceived challenges of having a child with dyslexia; how mothers perceived their impairments manifest in their mothering, including poor organisational skills, short-term memory, reading and spelling; and how mothers may attempt to reframe the apparent contradiction between a ‘good’ mother and a mother with dyslexia by, for example, portraying themselves as a positive role-model for their child and better able to identify and cater for their child’s needs.     

Survivor Feedback on a Safety Decision Aid Smartphone Application for College-Age Women in Abusive Relationships

College-age women are at high risk for dating violence and tend to seek services at rates lower than older adults. Young women are more likely to look to their peers or to technology as a forum for accessing safety resources. This study explores a prototype smart phone application (“app”) that is a safety decision aid for female survivors of dating violence. The app is intended to assist young women to assess the danger in their abusive relationship, set priorities for safety, and develop a personalized safety plan. Through focus group sessions and individual interviews, 38 female college students in 4 states (Arizona, Maryland, Missouri, and Oregon) who self-identified as survivors of abusive relationships reviewed and provided feedback on the usefulness, understandability, appropriateness, and comprehensiveness of the app. The focus group sessions and interviews were transcribed and analyzed. Participants were positive about the potential of the app to provide personalized information about abusive dating relationships and appropriate resources in a private, safe, and nonjudgmental manner. Detailed feedback from survivors and recommendations for further development of the app are discussed.     

“It's About Us”: Marital Adjustment and Marital Adaptation in Couples Who Adopt Children From the Child Welfare System

This article examines, using grounded theory methodology, the marital relationships of couples who adopted children from the child welfare system. Twenty-two spouses in four focus groups reported initial marital adjustment that featured husbands' support of their wives' initiation of adoption and management of child needs. About one half of these couples also developed time together and mutual influence to achieve a state of marital adaptation characterized by deeper intimate connection. Professionals are encouraged to understand the potential course of development of these marital relationships and to integrate attention to marital development into service throughout the entire adoption process.     

Caregiver–Youth Communication about Sex in South Africa: The Role of Maternal Child Sexual Abuse History

Much of the research on child sexual abuse focuses on negative outcomes. This brief report explores a potentially protective parenting behavior among black South African female caregivers with and without a child sexual abuse history. Using cross-sectional baseline data, we hypothesized that caregiver child sexual abuse history would be positively associated with caregiver–youth sex communication and this relationship would be strongest for girls. Youth whose caregiver experienced child sexual abuse were more likely to report communicating with their caregiver about sex than youth whose caregivers did not experience child sexual abuse; however, this relation did not hold for caregiver reported communication. Child sexual abuse survivors’ ability and decision to discuss sex with their youth has the potential to protect youth from sexual risk and demonstrates resilience among a group rarely acknowledged for positive parenting practices.     

Many Faces of Openness in Adoption: Perspectives of Adopted Adolescents and Their Parents

Parents and adolescents (mean age, 15.7 years) from 177 adoptive families participating in the second wave of the Minnesota/Texas Adoption Research Project were interviewed about their post-adoption contact arrangements. The sample included families with no contact, stopped contact, contact without meetings, and contact with face-to-face meetings between the adolescent and birth mother. Openness arrangements were dynamic, and different openness arrangements were associated with different experiences and feelings. Adoptive families with contact reported having higher levels of satisfaction about their openness arrangements, experiencing more positive feelings about the birth mother, and possessing more factual and personal knowledge about the birth mother than did families without contact. Adolescents and adoptive mothers in the contact with meetings group reported the greatest satisfaction with their openness arrangements; those with no contact or stopped contact reported the least satisfaction with their arrangements. Participants having no contact were more likely to want the intensity of contact to increase in the future rather than stay the same. Many participants already having contact wanted it to increase in the future. Fewer than 1 percent of all participants wanted to see the intensity of contact decrease.