Interlitter Response Variability in a Threshold Dose-Response Model

In this article, we extend a previously formulated threshold dose-response model with random litter effects that was applied to a data set from a developmental toxicity study. The dose-response pattern of the data indicates that a threshold dose level may exist. Additionally, there is noticeable variation between the responses across the dose levels. With threshold estimation being critical, the assumed variability structure should adequately model the variation while not taking away from the estimation of the threshold as well as the other parameters directly involved in the dose-response relationship. In the prior formulation, the random effect was modeled assuming identical variation in the interlitter response probabilities across all dose levels, that is, the model had a single parameter to account for the interlitter variability. In this new model, the random effect is modeled as having different response variability across dose levels, that is, multiple interlitter variability parameters. We performed the likelihood ratio test (LRT) to compare our extended model to the previous model. We conducted a simulation study to compare the bias of each model when fit to data generated with the underlying parametric structure of the opposing model. The extended threshold dose-response model with multiple response variation was less biased.     

How much do OECD countries spend on social protection and how redistributive are their tax/benefit systems?

The global economic crisis has reignited interest in social policy and public spending on different types of social benefits. Public social spending‐to‐GDP ratios are often used to consider the magnitude of welfare systems in international perspective, but such comparisons alone give an incomplete picture of social effort across countries. This article looks at these different factors, before briefly considering the redistributive nature of tax/benefit systems in different member countries of the Organisation for Economic Co‐operation and Development (OECD). The article also considers trends in social spending and compares spending in the late 2000s with the early 1990s when the previous economic crisis played out. The article ends by illustrating the profound effect the recent global economic crisis had on social spending trends across OECD countries.     

How to support families of children with disabilities? An exploratory study of social support services

Support services to families of children with disabilities have previously been documented. While the effectiveness and consequences of some support strategies have been defined, their comparison remains problematic primarily because of the diversified existing definitions. The present study aimed to elaborate and validate a typology to describe different types of support that can be offered to families of children with disabilities. A review of literature highlighted a variety of support services and allowed a categorical grouping. Content analysis ensured that each category was defined distinctively. Afterwards, a panel of experts and representatives of organizations from seven developed countries (Australia, Belgium, Canada, Denmark, France, Sweden and Switzerland) validated the typology. A database of services offered in these countries was created. The resulting typology was divided into four categories related to the family needs: support, respite, child minding and emergency support. Each type of support can be illustrated within organizations in the database. As such, social workers can use the defined typology to identify the needs of families of children with disabilities and suggest alternatives when services are not available. Overall, the described typology should facilitate discussion between stakeholders and families by providing a common communication system.     

The legal status of collective bargaining by public school teachers

This paper examines the characteristics of area populations that predict the content of bargaining legislation for public school teachers. The authors provide evidence suggesting that 1) pro-bargaining legislation is correlated with the representation of union members and related workers who benefit from collective bargaining, and 2) the legislation appears to be demanded by career workers as a means of transferring resources away from teachers with relatively short career horizons. An N-chotomous probit model is used to estimate the form of legislation that ranges from bargaining prohibition to prescribed bargaining. Data for the study were obtained from 95 SMSAs in 35 states. We are indebted to Paul H. Rubin and Elchanon Cohn for their substantial contributions to this project. We also received helpful suggestions from Chris Paul and R. Carter Hill.     

Healing loss, ambiguity, and trauma: a community-based intervention with families of union workers missing after the 9/11 attack in New York City

A team of therapists from Minnesota and New York worked with labor union families of workers gone missing on September 11, 2001, after the attack on the World Trade Center, where they were employed. The clinical team shares what they did, what was learned, the questions raised, and preliminary evaluations about the multiple family meetings that were the major intervention. Because of the vast diversity, training of therapists and interventions for families aimed for cultural competence. The community-based approach, preferred by union families, plus family therapy using the lens of ambiguous loss are proposed as necessary additions to disaster work.     

Spouse-aided Therapy and Psychiatric Nursing: A Preliminary Report

The training of psychiatric nurses as behavioural nurse therapists has been successfully established in the U.K. by Marks et al. However, their approach has a number of theoretical and practical limitations, such as a rigid adherence to an illness model of psychiatric disorder. This paper describes and evaluates an approach to the training of psychiatric nurses based on systems theory. Four nurses were trained in the use of Spouse-aided Therapy, a time-limited, goal-orientated outpatient approach to the treatment of married psychiatric patients with persisting psychological disorders. Patients' spouses are involved throughout therapy, with the aim of making full use of resources within marriage which may facilitate patients' recovery. Questionnaire and anecdotal data from 12 patients showed a mean fall of 30% in patients' symptoms and a mean fall of 20% in marital dissatisfaction after therapy. The pattern of results supported a systems theory interpretation of outcome.     

Sex Stratification and Male Biography: From Deprivation to Ascendance*

This essay examines some of the implications of early childhood confinement to the household for the development of male character structure. The argument developed is that assignment to women and the household makes small boys outsiders, who receive less comprehensible and positive forms of socialization than small girls. This deprivation experience contributes to the competitiveness and assertiveness of the male response to more favored treatment during the school years, leading to their eventual ascendance, in contrast females greater centrallty and more supportive treatment in early childhood may contribute to "passive" acceptance of male ascendance.     

Mixture model clustering using the MULTIMIX program

Hunt (1996) implemented the finite mixture model approach to clustering in a program called MULTIMIX. The program is designed to cluster multivariate data that have categorical and continuous variables and that possibly contain missing values. This paper describes the approach taken to design MULTIMIX and how some of the statistical problems were dealt with. As an example, the program is used to cluster a large medical dataset.