Estimation of generalized linear latent variable models

Summary.  Generalized linear latent variable models (GLLVMs), as defined by Bartholomew and Knott, enable modelling of relationships between manifest and latent variables. They extend structural equation modelling techniques, which are powerful tools in the social sciences. However, because of the complexity of the log-likelihood function of a GLLVM, an approximation such as numerical integration must be used for inference. This can limit drastically the number of variables in the model and can lead to biased estimators. We propose a new estimator for the parameters of a GLLVM, based on a Laplace approximation to the likelihood function and which can be computed even for models with a large number of variables. The new estimator can be viewed as an M -estimator, leading to readily available asymptotic properties and correct inference. A simulation study shows its excellent finite sample properties, in particular when compared with a well-established approach such as LISREL. A real data example on the measurement of wealth for the computation of multidimensional inequality is analysed to highlight the importance of the methodology.     

Pleasing the students: teachers' orientaton to classroom life in adult education

It is noted that existing sociological research on classrooms has focused too narrowly on compulsory schooling with the result that we have no data showing the rituals and routines of Adult Classrooms or the ways that teachers cope and resolve them. The paper presents fieldnote and interview data from a small ethnographic study of the two Adult Evening classes. The data suggest that in contrast to the teacher of school aged pupils, who seeks control and discipline, ‘pleasing students’ is the major orientation to classroom life of the evening class teacher. Do not say, the people must be educated when after all you only mean amused, refreshed, soothed put into good spirits and good humour or kept from vicious excesses. (Newman, 1873).     

The emergence of an Alpine environmental expertise

This article reports on the findings of research carried out on conflicts concerning major transport infrastructure projects in the Southern Alps. These conflicts were analyzed as delineating the gradual emergence of an environmental expertise network. Rather than fighting the administration and/or the transport operator in the field of transport, some opponents try to relocate the expertise into the field of the environment so as to catch the experts in the different administrations off guard. This resulting Alpine environmental expertise is based on the constitution of trans‐Alpine associative networks and the emergence of a constantly more supportive and structuring notion: sustainable development. In this article, we analyze the manner in which this notion is diffused and how it gradually builds up its definition in the course of action. The Alpine Agreement plays a major role in this operationalization: it constitutes a multilateral semantic point of reference for a variable Alpine policy and has influenced both major trans‐Alpine associative networks and official French land transport policy.     

Local dependence estimation using semiparametric archimedean copulas

The authors define a new semiparametric Archimedean copula family which has a flexible dependence structure. The generator of the family is a local interpolation of existing generators. It has locally‐defined dependence parameters. The authors present a penalized constrained least‐squares method to estimate and smooth these parameters. They illustrate the flexibility of their dependence model in a bi‐variate survival example.     

Real Men,Real Women,Real Lives? Gender issues in learning disabilities and challenging behaviour

This article seeks to define gender issues and explores the significance of these issues for challenging behaviour in the field of learning disability. It is argued that lack of awareness about these issues contributes to the development of challenging behaviour and to difficulties in identifying the needs expressed through these behaviours, whatever their origin. Specific areas examined include models of residential provision for adults, prioritisation of service activities, attribution processes (needs identification), and the sexuality of people with learning disabilities. In each area issues are raised and the implications for service practice defined.     

Ethnic Institutions Reconsidered: The Case of Flemish Workers in 19th Century France1

Abstract Traditional perspectives on ethnic institutions tend to consider mainly their role in the preservation of the cultural and social fabric of ethnic communities. Increasing evidence indicates that ethno‐institutional effects are often more varied and complex. France's first industrial‐era immigrants, massively crossing the border from Belgian Flanders during the second half of the 19^th century, are a case in point. Immigrant Flemish workers introduced a new type of institution to the French working class: socialist cooperatives. These would have a long‐term impact not only on the immigrant Flemish community itself, but also on the larger labour movement, on the region, and on the country as a whole. Three elements were important in this process of institutional cross‐fertilization: Belgian workers’ rich institutional repertoire; the coincidence of their settlement with the rise of the French labour movement; and the fact that their institutional innovation was easily transferable.