Centrality in social networks conceptual clarification

The intuitive background for measures of structural centrality in social networks is reviewed and existing measures are evaluated in terms of their consistency with intuitions and their interpretability.Three distinct intuitive conceptions of centrality are uncovered and existing measures are refined to embody these conceptions. Three measures are developed for each concept, one absolute and one relative measure of the centrality of positions in a network, and one reflecting the degree of centralization of the entire network. The implications of these measures for the experimental study of small groups is examined.     

Ex Ante and Ex Post Values for Changes in Risks

In this paper, I take risk to mean a composite of the probability of an adverse event and the severity of the consequences of the event. I explore two issues in the economic valuation of changes in individual risks brought about by public policies. These are: (1) the relationship between the values of risk prevention (i.e., the lowering of the probabilities of adverse events) and risk reduction (i.e., the reduction of the severity of the consequences of adverse events); and (2) the relationship between ex ante and ex post measures of the value of changes in risk.     

The analysis and interpretation of interactions

In many individual experiments, and especially when combining results from several experiments, interactions are observed. Various models have been proposed for the analysis of interactions, and product models are often useful. Work in this area is reviewed, starting with the 1920's and going on to recent studies, including some in Australia and Poland.     

Telephone sampling bias in surveying disability

Results of the California Disability Survey indicate that telephone interviewing is well suited for undertaking disability studies that provide (1) estimates of subgroups of the disabled population, including those that are statistically rare: (2) information on current and anticipated areas of policy concern; and (3) information for geographic areas important in rehabilitation program planning. Although these objectives necessitated a large sample size and a complex instrument, the costs and timeliness of telephone interviewing enabled the survey objectives to be reached. This paper discusses the advantages of telephone interviewing, as well as biases inherent in its use. The magnitude of the bias from the omission of nontelephone households is assessed, and the results confirm that the omission of nontelephone households introduces only minor biases into estimates for the total working-age population. A method of weighting is developed and illustrated.     

Diagnosis related groups: product line management within hospitals.

The hospital is viewed as a human service enterprise whose primary function is the provision of diagnostic and therapeutic medical services. Its products are the specific sets of services provided to individual patients. A system for defining hospital products based on the characteristics of patients receiving similar sets of services has been developed and is referred to as Diagnosis Related Groups (DRGs). The system is described, and its implications for improved hospital management are discussed.     

Governing the voluntary sector response to AIDS: a comparative study of the UK and Germany

The impact of AIDS on Western polities serves as a useful indicator both of social values and of political and organisational relationships. At the same time, community-based nonprofit organisations have been at the forefront of AIDS policy-making and service development. Taking Britain and Germany as case studies, this paper discusses similarities and differences in the functions accorded to the voluntary sector in the pattern of responses to HIV and AIDS. Typical problems confronted by emergent voluntary sector welfare agencies are noted and particular features of AIDS service organisations described. Separate accounts are then given of the development of a federated network of AIDS service organisations (ASOs) in Germany and of contrasting experience in the UK. While governments have shared a concern to confine the activity of ASOs to serving the needs of those groups directly affected by AIDS, other significant differences in policy development may be attributed to differences in the organisational structure of the health sector.Some of the material used in this paper is due to be published in Freeman (forthcoming). The paper is a product of doctoral research carried out in 1990, which was funded by the UK's Economic and Social Research Council. That research included case studies of policy responses to AIDS in Britain and Germany. I am indebted to all those who, despite the demands made on both their agencies and themselves, took time to discuss aspects of their work with me. The paper was first presented at the ECPR workshop on Non-governmental welfare provision in a long term perspective held at the University of Essex in March 1991. My thanks for their advice and comment are due to participants in the workshop and to three unnamedVoluntas referees.     

The role of emotion dysregulation in the association between subjective social status and eating expectancies among college students

Abstract

Objective: Research suggests that college is a risky period for changes in eating behavior and beliefs. Although social health determinants relate to health behavior changes, research has not explored subjective social status, one’s societal standing, in terms of eating expectancies among college students. The present study examined the emotion dysregulation in association between subjective social status and eating expectancies among college students. Participants: Participants were a diverse sample of 1,589 college students (80.4% females; M_age?=?22.2?years, SD?=?5.27) from an urban university. Results: Results showed a significant indirect association of subjective social status via emotion dysregulation in relation to expectancies of eating to help manage negative affect, to alleviate boredom, and to lead to feeling out of control. Conclusion: These findings provide evidence that college students with lower subjective social status may have a higher risk for dysregulated emotions, and consequently, expressing maladaptive eating expectancies.