Testing for order among K populations: theory and examples

Testing for stochastic order among K populations is a common and important problem in statistical practice. It arises in the analysis of both planned experiments and observational studies. The authors develop a new nonparametric test for order among K populations that can accommodate any stochastic ordering. The test is based on a maximally selected chi‐bar‐square statistic. The authors find its limiting distribution and use simulations to derive critical values. Three important examples are used to illustrate the applicability of the general method. The authors find that the new tests outperform the existing methods in many practical cases. The Canadian Journal of Statistics 38: 97–115; 2010 © 2009 Statistical Society of Canada     

Unheard voices,unmapped terrain: Care work in long‐term residential care for older people in Canada and Sweden

Daly T, Szebehely M. Unheard voices, unmapped terrain: care work in long‐term residential care for older people in Canada and Sweden This article aims to contribute to comparative welfare state research by analysing the everyday work life of long‐term care facility workers in Canada and Sweden. The study's empirical base was a survey of fixed and open‐ended questions. The article presents results from a subset of respondents (care aides and assistant nurses) working in facilities in three Canadian provinces (n= 557) and across Sweden (n= 292). The workers' experiences were linked to the broader economic and organisational contexts of residential care in the two jurisdictions. We found a high degree of country‐specific differentiation of work organisation: Canada follows a model of highly differentiated task‐oriented work, whereas Sweden represents an integrated relational care work model. Reflecting differences in the vertical division of labour, the Canadian care aides had more demanding working conditions than their Swedish colleagues. The consequences of these models for care workers, for older people and for their families are discussed.     

Essential Data Elements for Reporters of Elder Abuse

Most states' adult or elder protective services and aging agency personnel prepare annual reports about their protective services. These reports vary by state and have different terms for the reporter of abuse. Reviewing annual reports from 46 states and the District of Columbia, 248 different terms were used for the reporter of abuse. To develop essential data elements for reporters of abuse, a literature search, a compilation of state elder abuse annual report list of abuse reporters, and a sorting exercise were conducted. Eleven terms were recommended for the different reporters of abuse, encouraging all state administrators and caseworkers to reach consensus to standardize the language.     

Secure Body Attachment and the Prevention of Eating Disorders: A Case Application

Drawing on attachment theory, the author explores the particular physical presence of the body as a significant aspect of the attachment relationship between two people, most notably between two females (the mother and the daughter). Recognizing the nature of one’s body attachment as a protective and a risk factor provides a greater understanding of the potential for resilience, as well as the presence of vulnerability in relationship to one’s body. Through a case application, the author argues that without a model of secure attachment to the body, a female is more likely to develop an attachment to cultural ideals as an extension of primary relationships and at the expense of her own body, moving her from exposure to action in the form of an eating disorder.     

Elder abuse research: a systematic review

The purpose of this research was to provide a systematic review of, and assign an evidence grade to, the research articles on elder abuse. Sixteen health care and criminal justice literature databases were searched. Publications were reviewed by at least two independent readers who graded each from A (evidence of well-designed meta-analysis) to D (evidence from expert opinion or multiple case reports) on the quality of the evidence gained from the research. Of 6,676 titles identified in the search, 1,700 publications met inclusion criteria; omitting duplicates, 590 publications were annotated and graded.     

Income inequality and participation: A comparison of 24 European countries

Previous research suggests that when there is a high level of inequality, there is a low rate of participation. Two arguments are generally offered: First, inequality depresses participation because people from different status groups have fewer opportunities to share common goals. Second, people may participate more in civic and social life when they have more resources. However, until now, these explanations have not been separated empirically. Using EU-SILC data for 24 European countries, we analyze how income inequality is related to civic and social participation. Our results indicate that the main effects of inequality manifest via resources at the individual and societal level. However, independent of these resources, higher inequality is associated with lower civic participation. Furthermore, inequality magnifies the relationship between income and participation. This finding is in line with the view that inter-individual processes explain why inequality diminishes participation.     

STENO:an expert system for medical diagnosis based on graphical models and model search

Causal probabilistic models have been suggested for representing diagnostic knowledge in expert systems. This paper describes the theoretical basis for and the implementation of an expert system based on causal probabilistic networks. The system includes model search for building the knowledge base, a shell for making the knowledge base available for users in consultation sessions, and a user interface. The system contains facilities for storing knowledge and propagating new knowledge, and mechanisms for building the knowledge base by semi-automated analysis of a large sparse contingency table. The contingency table contains data acquired for patients in the same diagnostic category as the intended application area of the expert system. The knowledge base of the expert system is created by combining expert knowledge and a statistical model search in a model conversion scheme based on a theory developed by Lauritzen & Spiegelhalter and using exact tests as suggested by Kreiner. The system is implemented on a PC and has been used to simulate the diagnostic value of additional clinical information for coronary artery disease patients under consideration for being referred to coronary arteriography.     

Population and economics: A bioeconomic analysis

The notion of optimal population is recast as a problem of optimal scale (population times per capita resource use). Bioeconomic limits to scale are considered, drawing on concepts from A.J. Lotka and N. Georgescu-Roegen. The ethical choice between many people at low resource use per capita versus fewer people at higher resource per capita transcends bioeconomics, but is unavoidable and highlights the issue of sufficiency as well as efficiency. A policy of increasing resource severance taxes and lowering income taxes, especially on lower incomes, is suggested as a way of serving both efficiency and sufficiency.Presented at the symposium on Population and Scarcity: The Forgotten Dimensions.