Flexible Tweedie regression models for continuous data

Tweedie regression models (TRMs) provide a flexible family of distributions to deal with non-negative right-skewed data and can handle continuous data with probability mass at zero. Estimation and inference of TRMs based on the maximum likelihood (ML) method are challenged by the presence of an infinity sum in the probability function and non-trivial restrictions on the power parameter space. In this paper, we propose two approaches for fitting TRMs, namely quasi-likelihood (QML) and pseudo-likelihood (PML). We discuss their asymptotic properties and perform simulation studies to compare our methods with the ML method. We show that the QML method provides asymptotically efficient estimation for regression parameters. Simulation studies showed that the QML and PML approaches present estimates, standard errors and coverage rates similar to the ML method. Furthermore, the second-moment assumptions required by the QML and PML methods enable us to extend the TRMs to the class of quasi-TRMs in Wedderburn's style. It allows to eliminate the non-trivial restriction on the power parameter space, and thus provides a flexible regression model to deal with continuous data. We provide an R implementation and illustrate the application of TRMs using three data sets.     

Identity Work,Techniques of Neutralization,and Deviance: Exploring the Relationship Among Older Adult Gamblers

This study investigates the value of techniques of neutralization in understanding how people involved in marginal to widely deviant behaviors perform identity work. Based on 33 in‐depth interviews with older adult gamblers, we show how techniques of neutralization are used to align personal and social identities. We describe the techniques of neutralizations our participants use along a continuum of gambling involvement, showing how techniques differ in variety and content and are contingent on larger narratives about appropriate behaviors, identities, and selves operating in contemporary society. Our research helps to refine sociologists' understandings of relationships between levels of involvement in deviant behaviors and identity work.     

Understanding and Measuring LGBTQ Pathways to Health: A Scoping Review of Strengths-Based Health Promotion Approaches in LGBTQ Health Research

Health research traditionally has focused on the health risks and deficits of lesbian, gay, bisexual, transgender, and queer (LGBTQ) populations, obscuring the determinants that can promote health across the life course. Recognizing, appropriately measuring, and rendering visible these determinants of health is paramount to informing appropriate and engaging health policies, services, and systems for LGBTQ populations. The overarching purpose of this article is to provide an overview of the findings of a scoping review aimed at exploring strengths-based health promotion approaches to understanding and measuring LGBTQ health. Specifically, this scoping review examined peer-reviewed, published academic literature to determine (a) existing methodological frameworks for studying LGBTQ health from a strengths-based health promotion approach, and (b) suggestions for future methodological approaches for studying LGBTQ health from a strengths-based health promotion approach. The findings of this scoping review will be used to inform the development of a study aimed at assessing the health of and improving pathways to health services among LGBTQ populations in Nova Scotia, Canada.     

Maternal Household Decision-Making Autonomy and Adolescent Education in Honduras

Maternal decision-making autonomy has been linked to positive outcomes for children’s health and well-being early in life in low- and middle-income countries throughout the world. However, there is a dearth of research examining if and how maternal autonomy continues to influence children’s outcomes into adolescence and whether it impacts other domains of children’s lives beyond health, such as their education. The goal of this study was to determine whether high maternal decision-making was associated with school enrollment for secondary school-aged youth in Honduras. Further, we aimed to assess whether the relationships between maternal autonomy and school enrollment varied by adolescents’ environmental contexts and individual characteristics such as gender. Our analytical sample included 6579 adolescents ages 12–16 living with their mothers from the Honduran Demographic and Health Survey (DHS) 2011–2012. We used stepwise logistic regression models to investigate the association between maternal household decision-making autonomy and adolescents’ school enrollment. Our findings suggest that adolescents, especially girls, benefit from their mothers’ high decision-making autonomy. Findings suggest that maternal decision-making autonomy promotes adolescents’ school enrollment above and beyond other maternal, household, and regional influences.     

Muslims’ social inclusion and exclusion in France,Québec,and Canada: does national context matter?*

This article compares the social experiences of Muslim minorities in three contexts – France, Québec, and English Canada – each reflecting a different approach to immigrant integration. France’s republican model emphasises cultural assimilation and the exclusion of religion from the public sphere; Canada’s multicultural model advocates official recognition of minority cultures; Québec shares Canada’s tradition of large-scale permanent immigration but embodies a unique intercultural discourse of integration, in some ways resembling France. We compare the social experiences of Muslim and non-Muslim minorities in these three settings using the French ‘Trajectories and Origins’ survey (2009) and the Canadian ‘Ethnic Diversity Survey’ (2002) data on reports of discrimination, friendship networks, social trust, voluntarism, and national identity. We find the Muslim/non-Muslim gap in social inclusion is significant in all three settings and results from ethnic, cultural, or racial differences, more than religion. In assessing immigrants’ social inclusion, we suggest consideration be given to: (i) the reality of ‘national models’ in the community, (ii) a tendency for minorities to locate in more accepting segments of mainstream society, and (iii) the limited impact of policies based on national models.     

“I Have the Worst Fear of Teachers”: Moments of Inclusion and Exclusion in Family/School Relationships among Indigenous Families in Southern Ontario

Student success is facilitated by strong bonds between families and schools, including a shared sense of purpose and mutual trust. However, for Indigenous peoples these relationships are often broken, undermined by the legacy of residential schooling and assimilative educational practices. Drawing on interviews with 50 Indigenous (mainly Haudenosaunee, Anishinaabe, and Métis) and non‐Indigenous parents and educators, this paper examines the ways in which issues of class and race shape interactions between teachers and Indigenous parents. The interviews reveal that legacies of racial discrimination against Indigenous peoples in schooling affect family/school relations among middle‐class (MC) and lower‐class (LC) parents in different ways. MC parents intensify relations with the school while, in comparison, LC parents tend to disengage as a consequence of their negative schooling experiences. Les relations étroites entre les familles et les écoles, et notamment leurs buts communs et leur confiance partagée, facilitent la réussite des étudiants. Toutefois, au sein des populations autochtones, ces liens sont pour la plupart rompus en raison des conséquences des pensionnats scolaires et des pratiques éducatives d'assimilation. Cette étude s'appuie sur des entretiens avec 50 parents et éducateurs issus de populations autochtones (principalement celles d'Haudenosaunee, d'Anishinaabe et de Métis) et non autochtones pour étudier la manière dont les questions de classe et de race affectent les interactions entre les enseignants et les parents issus de populations autochtones. Ces entretiens montrent que le passé discriminatoire des écoles envers les peuples autochtones a eu des répercussions différentes sur les relations famille/école, selon qu'il s'agisse de parents issus de la classe moyenne ou de parents issus d'un milieu pauvre. Les parents issus de la classe moyenne ont renforcé leurs liens avec l’école alors que les parents des classes inférieures tendent à se désengager du fait de leur expérience scolaire négative.     

Watching online videos interactively: the impact of media capabilities in Chinese Danmaku video sites

In China, the implementation of a Danmaku social media system to sustain and raise user interest in online video sites is an increasingly widespread phenomenon. Danmaku technology is used to display users’ messages in written text on the online video stream. Little is known about the effects of this form of interactive enhancement. The aim of this empirical study is to evaluate the evolving media capabilities of the Danmaku system and their effects on users’ perceptions of interactivity and their intentions to continue using Danmaku. We draw on media synchronicity theory and apply it to a stimulus-organism-response model. Using this framework, we hypothesize that the media capabilities of the Danmaku system, namely its transmission velocity, parallelism, symbol sets, rehearsability, and reprocessability, elicit increased interactivity, which influences users’ instantaneous intentions to share and to continue the use of the Danmaku system. The results showed that both users’ instantaneous intention to share and their intention to continue to use were significantly affected by the perceived interactivity. Unlike the results of previous studies, our findings showed that all five media capabilities positively affected the users’ perceptions of interactivity. The potential theoretical and practical implications of our findings are discussed.