Goodness-of-fit tests for parametric regression with selection biased data

Consider the nonparametric location-scale regression model Y=m(X)+σ(X)ε$Y=m(X)+\sigma (X)\epsilon$, where the error ε$\epsilon$ is independent of the covariate X$X$, and m$m$ and σ$\sigma$ are smooth but unknown functions. The pair (X,Y)$(X,Y)$ is allowed to be subject to selection bias. We construct tests for the hypothesis that m(·)$m(·)$ belongs to some parametric family of regression functions. The proposed tests compare the nonparametric maximum likelihood estimator (NPMLE) based on the residuals obtained under the assumed parametric model, with the NPMLE based on the residuals obtained without using the parametric model assumption. The asymptotic distribution of the test statistics is obtained. A bootstrap procedure is proposed to approximate the critical values of the tests. Finally, the finite sample performance of the proposed tests is studied in a simulation study, and the developed tests are applied on environmental data.     

It is Hard to Swim Upstream: Dietary Acculturation Among Mexican-Origin Children

Health and immigration researchers often implicate dietary acculturation in explanations of Mexican children of immigrants’ weight gain after moving to the U.S., but rarely explore how diet is shaped by immigrants’ structural incorporation. We used data from the 1999/00-2009/10 National Health and Nutrition Examination Survey to assess how indicators of Mexican-origin children’s acculturation and structural incorporation influence two outcomes: how healthy and how “Americanized” children’s diets are. Indicators of acculturation were strongly associated with more Americanized and less healthy diets. However, structural incorporation indicators were mostly unrelated to diet outcomes net of acculturation. An exception was that parental education was positively associated with consuming a healthy diet. Finally, children of natives consumed more Americanized, unhealthy diets than children of immigrants and these differences were largely explained by differences in the acculturation. Children of natives would have consumed an even less healthy diet were it not for their higher levels of parental education. Overall, the results suggest that the process of adapting to the U.S. life style is associated with the loss of cultural culinary preferences and less healthy eating behaviors despite improvements in socioeconomic status.     

Mammal conservation in a changing world: can urban gardens play a role?

Urbanisation threatens biodiversity globally, yet some animal populations persist within urban landscapes. Conservation of urban wildlife has prioritised parks and remnant bushland as critical habitat and neglected the role that residential gardens offer for conservation. We explored the potential for residential gardens to assist the conservation of mammals using an online questionnaire administered to residents of two case study cities in Australia to identify how widespread mammals in cities can be, which garden features promote mammal presence, and if the features varied among species with different habitat requirements. From 649 responses we found that three mammal species with different habitat requirements occurred in residential gardens throughout the city landscape. Garden features promoting mammal presence were consistent with broad ecological and habitat requirements of each species, but differed among both species and regions. Our study demonstrates that residential gardens offer a valuable habitat for mammals, and that garden features could be manipulated to promote use of gardens by these species. By considering gardens in urban planning and management actions aimed at conserving urban wildlife, residential gardens offer additional habitat to parks, roadside vegetation and urban bushland, and can play a significant role in biodiversity conservation.

     

Does managers' motivation matter? Exploring the associations between motivation,transformational leadership,and innovation in a religious organization

Religious organizations are social systems operating in a complex and changing environment. By looking to an authority beyond themselves, religious organizations have comparatively little control over defining their own goals. In this juggling between sticking to the ultimate goal of an organization and adapting to complex changing environments, that is, in the juggling between tradition and renewal, transformational leadership seems to play an important role in religious organizations. The extensive body of literature on transformational leadership has focused more on the outcomes of transformational leadership than on its antecedents. We extend the existing literature by linking managers' motivation to their transformational leadership behaviors in a religious organization. More specifically, we examined the associations of intrinsic and prosocial motivation with transformational leadership, and we investigated the relationship between transformational leadership and innovation among 252 managers in the largest nonprofit organization in Norway, the Church of Norway. Analyses in structural equation modeling revealed a positive relationship between intrinsic motivation and transformational leadership, whereas the relationship between prosocial motivation and transformational leadership was not significant. Transformational leadership was positively associated with innovation. Based on the results of the study, we discuss practical implications regarding how to support intrinsic motivation, transformational leadership, and innovation in religious organizations.     

“They Look at You like You're Nothing”: Stigma and Shame in the Child Support System

More than 22 million or 1 in 4 children in the United States are currently served by the child support program. This program, the third largest used to address childhood poverty, regulates non‐custodial parents' financial support of their children through federal, state, and municipal legislation and policies. The collateral consequences, particularly those related to economic stability and criminal justice involvement, associated with child support system participation have been widely studied. However, many of the interpersonal interactions between those who have cases in the system and those who work in the system have been largely ignored. In this article, I use courtroom observations, in‐depth interviews, and cultural artifacts to explore the practices of stigmatization and shaming in this important legal and bureaucratic process. I explore stigma and shame in three thematic areas: (1) shame in social interactions, (2) shame as a tool of social control, and (3) the social consequences of shame. I ultimately suggest that stigma and shame in the child support system, resembling that in the welfare and criminal justice systems, reinforces cognitive boundaries between parents perceived as “responsible” and those perceived as “deadbeats.”     

How is participation related to well-being of homeless people? An explorative qualitative study in a Dutch homeless shelter facility

The majority of homeless people is socially excluded which negatively affects their well-being. Therefore, participation-based programs are needed. The current research is conducted within a Dutch homeless shelter facility that offers educational, recreational, and labor activities to clients in an environment which is designed to feel safe (an enabling niche). The main aim of these activities is to facilitate social participation. We conducted two qualitative studies consisting of 16 semi-structured interviews, to explore clients’ experiences with participation in activities in relation to their well-being. The findings showed that clients experienced that participation had led to an improvement of physical, social, and mental well-being. In general, clients reported that due to participation in activities they have strengthened their social support network, improved their (mental and physical) health, self-esteem and personal growth. We concluded that in order to facilitate long-term positive outcomes of participation in practice, it is necessary to focus on group cohesion, and on the social worker’s behavior and attitude.     

Mother–Adolescent Conflict Interaction Sequences: The Role of Maternal Internalizing Problems

Adaptive mother–adolescent conflict interactions are characterized by the ability to move from negative to positive emotions. The current micro‐observational study investigated how mothers and adolescents make transitions between positive, neutral and negative emotions and whether these transitions depend on maternal internalizing problems. We used three annual waves of conflict interaction observations among 102 mother–adolescent dyads. Mothers were more likely than adolescents to initiate positivity after negativity whereas adolescents were more likely than mothers to reciprocate negativity. Mothers high and low in internalizing problems were equally likely to drive transitions toward positivity. Our study indicates that an active role of mothers in regulating negativity toward positivity is desirable because adolescents are likely to maintain dysfunctional interaction patterns of rigid negativity.