A Test to Detect Within-family Infectivity when the Whole Epidemic Process is Observed

An epidemic model for the spread of an infectious disease in a population of families is considered. The score test of the hypothesis that there is no higher infectivity between family members is constructed under the assumption that the epidemic process is observed continuously up to some time t . The score process is a martingale as a function of t and by letting the number of families tend to infinity, a central limit theorem for the process can be proved. The central limit theorem not only justifies a normal approximation of the test statistic—it also suggests a smaller variance estimator than expected.     

Bayesian point null hypothesis testing via the posterior likelihood ratio

This paper gives an exposition of the use of the posterior likelihood ratio for testing point null hypotheses in a fully Bayesian framework. Connections between the frequentist P-value and the posterior distribution of the likelihood ratio are used to interpret and calibrate P-values in a Bayesian context, and examples are given to show the use of simple posterior simulation methods to provide Bayesian tests of common hypotheses.     

Circular Questioning and Shifting Relationships

This article is a contribution to the necessary development of process evaluation in family therapy. A videotaped case, consisting of six sessions, is reviewed and the changes in the various family relationships are described. Attempts are made to look for correspondences between circular questioning in one of the sessions and shifts in relationships.     

The individual welfare function: A review

The Individual Welfare Function (IWF), introduced by Van Praag (1968), is a cardinal utility function. It can be measured by means of survey questions. Since its introduction, the IWF has been used extensively in both theoretical and empirical research. This research is reviewed, with an emphasis on policy applications.     

Ticking Boxes and Changing the Social World: Data Collection and the New UK General Practice Contract

The new General Medical Services contract was introduced into general practice in the UK in 2004, and it links pay to performance far more than in the past. As a result, accurate data collection about patients and the care that they receive is now not only important for good patient care but also to prove that targets are being met. The use of electronic records and information technology has thus become much more sophisticated. This article reports the results from an ethnographic study of the early stages of the new contract in two general practices. As expected, electronic data collection had increased in importance in both practices, with consequences both for clinician–patient interactions and for the structures and processes in the practices, as uniform data collection instruments are put in place that privilege ‘hard’ biomedical data that can be easily coded above ‘softer’, more patient-centred information. Roles and responsibilities had been changed to reflect the needs of the new systems, and new software applications allowed increased surveillance of both doctors’ and nurses’ performance; both of these had an impact on patterns of authority in our study practices. Furthermore, the structural changes that were found acted to embed the new ways of working, ensuring their reproduction in the future. In spite of these effects, we found little opposition to or critical reflection on the changes, and the doctors in our study continued to view their improved computer systems as neutral recording devices. The implication of these findings is discussed.     

The role of military culture in military organizations' responses to woman abuse in military families1

This paper reports on a study of the Canadian Forces' (CF's) response to woman abuse in military families which was conducted using institutional ethnography feminist methodology. A 20‐person multidisciplinary team conducted 126 semi‐structured interviews in four Canadian provinces with: (1) present and former civilian female partners of CF members, who were survivors of abuse [64]; (2) regional civilian and CF social service providers, and CF supervisory personnel [52]; and (3) National Defence Headquarters program administrators and generals in Ottawa [10]. Analyzing these interviews enabled us to identify and elaborate on some of the military social relations in which the experiences of military spouses who are woman abuse survivors are embedded. This paper discusses the difficulties created for military spouses by geographical transfers and military housing neighbourhoods, and establishes the crucial role played by the chain of command in military organizations' responses to spouses who have been abused. The paper then shows how military leaders, especially those who supervise combat units, respond to woman abuse in ways that reflect their participation in the hypervigilance and unit cohesion features of military culture. The paper concludes by reflecting on Western militaries' responses to woman abuse in military families in light of their responses to the events of September 11, 2001.     

Everyday Life in Stochastic Networks1

Models of Stochastic networks may prove important tools for integrating ideas about structure with ideas about process in social theory.