Multivariate normal estimation: the case (n < p)

Estimation in the multivariate context when the number of observations available is less than the number of variables is a classical theoretical problem. In order to ensure estimability, one has to assume certain constraints on the parameters. A method for maximum likelihood estimation under constraints is proposed to solve this problem. Even in the extreme case where only a single multivariate observation is available, this may provide a feasible solution. It simultaneously provides a simple, straightforward methodology to allow for specific structures within and between covariance matrices of several populations. This methodology yields exact maximum likelihood estimates.     

Family violence laws: Traditional narratives and the (in)visibility of lesbian relationships and lesbian-parented families

Abstract

Feminist advocacy and activism over the last 40 years broke historic ground in shining a light on “domestic” or “family” violence, traditionally conceptualized as male violence against female intimate partners and their children. This has resulted in a large body of research, particularly in the United States, United Kingdom, Australia, and similar jurisdictions, around the gendered nature of family violence and violence within heterosexual relationships and heterosexual-parented families. As a consequence, the predominant narrative—in political, policy, and advocacy settings—is largely heteronormative. Less research has focused on family violence in non-heterosexual relationships. The data that do exist have employed different methodological approaches and there are limitations on the extent to which they can be compared to the data on violence within heterosexual relationships. However, the existing research does demonstrate that family violence within lesbian, gay, bisexual, transgender, and intersex (LGBTI) communities is a significant issue. Even so, the current narrative does not acknowledge this, and predominantly reflects heterosexual norms of intimate relationships and family structures in society. LGBTI relationships are described as “invisible” in policy and practice responses to family violence, due to the failure to acknowledge violence in such communities. This article explores these claims in relation to lesbian relationships in the context of Australian legislative responses to family violence. It considers the extent to which family violence laws in two Australian jurisdictions recognize and frame lesbian identity in intimate relationships and lesbian-parented families. This is considered in light of the emerging conceptualization of family violence in lesbian relationships and lesbian-parented families, as evidenced by the wider scholarly literature on the nature and dynamics of such violence.     

Gaining by giving? Peer research into service user and carer perceptions of inclusivity in Higher Education

Abstract

Service users and carers (SUAC) have made significant contributions to professional training in social work courses in Higher Education (HE) over the past decade in the UK. Such participation has been championed by government, academics and SUAC groups from a range of theoretical and political perspectives. Most research into the effectiveness of SUAC involvement at HE has come from the perspectives of academics and very little SUAC-led research exists. This qualitative peer research was led by two members of the University of Worcester’s SUAC group. Findings were that SUAC perceived their involvement brought benefits to students, staff, the University and the local community. Significant personal benefits such as finding a new support network, increased self-development and greater confidence to manage their own care were identified in ways that suggested that the benefits that can flow from SUAC involvement at HE are perhaps more far-reaching than previously recognised. Barriers to inclusion were less than previously reported in the literature and the humanising effects of SUAC involvement are presented as a partial antidote to an increasingly marketised HE culture.     

Negative Religious Rhetoric in the Lives of Black Cisgender Queer Emerging Adult Men: A Qualitative Analysis

Given the intersection of racial, religious, and sexual identities for Black queer populations, the current study examines sexuality-related religious rhetoric. Twenty Black cisgender queer men were recruited to participate in a qualitative interview. Using thematic analysis, the research team identified four themes: negative religious rhetoric, personal consequences of negative religious rhetoric, social consequences of negative religious rhetoric, and growth from negative religious rhetoric. Participants explained the pervasiveness of negative religious rhetoric within their churches and family structures. Men also conveyed how negative religious rhetoric frames societal ideologies around same-sex behavior, often condoning violence toward queer populations. Although men had negative experiences, participants articulated the importance of using oppression as a platform for growth. Black cisgender queer men are present within religious institutions; however, such negative religious rhetoric may negatively affect their mental and physical health. Researchers, clinicians, and clergy should consider the ways negative religious rhetoric marginalizes queer populations.     

Comparison of performance measures for multivariate discrete models

For multivariate probit models, Spiess and Tutz suggest three alternative performance measures, which are all based on the decomposition of the variation. The multivariate probit model can be seen as a special case of the discrete copula model. This paper proposes some new measures based on the value of the likelihood function and the prediction-realization table. In addition, it generalizes the measures from Spiess and Tutz for the discrete copula model. Results of a simulation study designed to compare the different measures in various situations are presented.     

Rural ageing in the United States: Trends and contexts

This paper examines rural population ageing in the United States with a particular focus on the contrasting contexts in which older rural residents live. We compare the characteristics of the older population by rural versus urban residence, and explore challenges and opportunities associated with the ageing of rural baby boomers. The United States is a vast territory, and rural areas in the US are diverse regionally, in poverty and income, principal forms of employment, proximity to metropolitan areas, population size, density and composition, the history of change in these parameters, and a number of other factors that affect the ageing process. Hence, the diversity across rural areas is an important consideration in what affects the well being of rural elderly individuals, as well as the community-level impacts of rural ageing. Further, the characteristics of the older rural population help shape community and rural development outcomes for diverse rural communities. We use data from various US Census Bureau sources, and cite other studies to provide a demographic overview of ageing in the rural United States, and to analyze how this situation differs in varying socio-demographic and regional contexts. In the concluding section, we focus on policy implications associated with rural ageing.     

Sécurité sociale et résultats des entreprises: l'exemple des PME au Viet Nam

Les auteurs examinent les effets de la sécurité sociale – critère du caractère formel de l'activité – sur les résultats des PME vietnamiennes. À partir de données sur les entreprises déclarées (2006–2011), ils constatent qu'une élévation de 10 pour cent de la couverture du personnel est associée à une augmentation du chiffre d'affaires et des profits allant respectivement de 1,4 à 2 pour cent et jusqu'à 1,8 pour cent par travailleur. Toutefois, étant donné le décalage entre l'«investissement» (versement des cotisations) et son rendement (performances supérieures), des politiques d'accompagnement sont nécessaires pour encourager les petites entreprises à s'annoncer aux régimes obligatoires.