Comparison of dichotomized and distributional approaches in rare event clinical trial design: a fixed Bayesian design

This research was motivated by our goal to design an efficient clinical trial to compare two doses of docosahexaenoic acid supplementation for reducing the rate of earliest preterm births (ePTB) and/or preterm births (PTB). Dichotomizing continuous gestational age (GA) data using a classic binomial distribution will result in a loss of information and reduced power. A distributional approach is an improved strategy to retain statistical power from the continuous distribution. However, appropriate distributions that fit the data properly, particularly in the tails, must be chosen, especially when the data are skewed. A recent study proposed a skew-normal method. We propose a three-component normal mixture model and introduce separate treatment effects at different components of GA. We evaluate operating characteristics of mixture model, beta-binomial model, and skew-normal model through simulation. We also apply these three methods to data from two completed clinical trials from the USA and Australia. Finite mixture models are shown to have favorable properties in PTB analysis but minimal benefit for ePTB analysis. Normal models on log-transformed data have the largest bias. Therefore we recommend finite mixture model for PTB study. Either finite mixture model or beta-binomial model is acceptable for ePTB study.     

Predicting Follow‐up Outcomes in Emotionally Focused Couple Therapy: The Role of Change in Trust,Relationship‐Specific Attachment,and Emotional Engagement

Emotionally Focused Couple Therapy (EFT), an evidence‐based couple therapy (Johnson, Hunsley, Greenberg, & Schindler, 1999), strives to foster lasting change through the creation of secure attachment bonds in distressed couples. Although studies have demonstrated lasting change in follow‐up (Wiebe et al., in press), research is needed to investigate predictors of long‐term outcomes. Our goal was to investigate predictors of long‐term outcomes in relationship satisfaction. Relationship satisfaction was assessed across 24 months in a sample of 32 couples who received an average of 21 EFT sessions. Decreases in attachment avoidance were most predictive of higher relationship satisfaction across follow‐up. These findings support the theoretical assumption that EFT helps couples foster lasting change in relationship satisfaction through the facilitation of secure attachment bonds.     

A Grounded Theory of Sexual Minority Women and Transgender Individuals’ Social Justice Activism

Psychosocial benefits of activism include increased empowerment, social connectedness, and resilience. Yet sexual minority women (SMW) and transgender individuals with multiple oppressed statuses and identities are especially prone to oppression-based experiences, even within minority activist communities. This study sought to develop an empirical model to explain the diverse meanings of social justice activism situated in SMW and transgender individuals’ social identities, values, and experiences of oppression and privilege. Using a grounded theory design, 20 SMW and transgender individuals participated in initial, follow-up, and feedback interviews. The most frequent demographic identities were queer or bisexual, White, middle-class women with advanced degrees. The results indicated that social justice activism was intensely relational, replete with multiple benefits, yet rife with experiences of oppression from within and outside of activist communities. The empirically derived model shows the complexity of SMW and transgender individuals’ experiences, meanings, and benefits of social justice activism.     

Cultural Responsiveness: a framework for re-thinking students’ interculturality through study abroad

While intercultural competence is commonly a goal of university study abroad programmes, debates around criteria for assessing this competence have highlighted the challenges in appropriately identifying students’ intercultural learning in relation to specific university programmes. To overcome these issues, this research moves beyond conceptualising the intercultural in terms of ‘competence’ and instead proposes a framework termed Cultural Responsiveness to illustrate students’ intercultural learning. Through questionnaires and interviews, the experiences and perceptions of undergraduate students after a year of exchange in France or Switzerland were collected and analysed. Using the Cultural Responsiveness framework, three parameters of students’ intercultural experiences emerged: Awareness, Engagement and Bringing Knowledge Home.     

Special education disproportionality in the United States,Germany, Kenya,and India

Disproportionality in special education includes the underrepresentation and overrepresentation of children by gender, economic status, race, ethnicity, language, and culture. This article reviews literature on disproportionality in the United States, Germany, Kenya, and India. Societal views of disability, classism, racism, and inequitable assessment are among the factors that contribute to disproportionality. Preventative medicine, equitable access to resources, ethical and effective assessment procedures, and educational practices that are gender equitable and culturally responsive may reduce the problem of disproportionality.     

Schedule flexibility in hourly jobs: unanticipated consequences and promising directions

This article considers the challenge of extending conventional models of flexibility to hourly jobs that are often structured quite differently than the salaried, professional positions for which flexibility options were originally designed. We argue that the assumptions of job rigidity and overwork motivating existing flexibility options may not be broadly applicable across jobs in the US labor market. We focus specifically on two types of flexibility: (1) working reduced hours and (2) varying work timing. We first review central aspects of the US business and policy contexts that inspire our concerns, and then draw on original analyses from US census data and several examples from our comparative case-study research to explain how conventional flexibility options do not always map well onto hourly jobs, and in certain instances may disadvantage workers by undermining their ability to earn an adequate living. We conclude with a discussion of alternative approaches to implementing flexibility in hourly jobs when hours are scarce and fluctuating rather than long and rigid.     

‘Recuperando la dignidad humana [Recovering human dignity]’: Shuar mothers speak out on intercultural bilingual education

This paper presents findings from interviews conducted in December 2011, with seven Shuar mothers of children in an intercultural bilingual school in the southern Amazon region of Ecuador. This study had two objectives: (1) to foreground the perspectives of Shuar parents towards intercultural bilingual education (IBE) as implemented in the Shuar pedagogical institute, and (2) to collaborate as an intercultural research team (North American-Shuar) to ensure linguistic and cultural authenticity of data collection, and analysis. As a Shuar mother herself, the co-author shares the same language and culture as the participants, which led to a deeper level of trust and openness in the interviews. Current studies claim that IBE is losing ground, partly because parents want their children schooled in Spanish – the language of power – and see the IBE system as inferior. However, these Shuar mothers expressed a different concern: IBE has been too intertwined with Salesian missions and must become decolonized in order to reflect authentic Shuar cultural values and educational practices.     

The Impact of Formal and Informal Respite Care on Foster,Adoptive, and Kinship Parents Caring for Children Involved in the Child Welfare System

This paper reports the results of a quantitative 42-item survey that explored foster, adoptive, and kinship parents’ (N = 160) utilization of different types of respite services (formal, informal, and a mixture of formal and informal), as well as their impressions of the impact of respite care on aspects of their lives related to family cohesion and stability, caring for their children, and their personal wellbeing. An exploratory cross-sectional, survey design was used to assess both the formal and informal respite care experiences of the foster, adoptive, and kinship caregivers. Two-tailed Fisher’s exact tests were used to examine the relationship between the type of respite received and caregivers’ respite experiences. Findings indicated that parent experiences differed depending on the type of respite services they received. Specifically, parents who used a mixture of formal and informal respite reported positive experiences related to respite more frequently than the other two types of respite groups, while those who received only informal respite reported less benefit than others. Parents who used formal respite (either alone or mixed with informal respite) reported greater stress reduction. The greatest increase in family stability was reported by parents who received a mix of informal and formal respite. While this study revealed clear benefits for families to using both informal and formal respite services, the findings suggest that formal respite care was helpful to parents regardless of whether used alone or in combination with informal care.