Missing data estimators in the general linear model: an evaluation of simulated data as an experimental design

Previous simulations have reported second order missing data estimators to be superior to the more straightforward first order procedures such as mean value replacement. These simulations however were based on deterministic comparisonsbetween regression criteria even though simulated sampling is a random procedure. In this paper a simulation structured asan experimental design allows statistical testing of the various missing data estimators for the various regression criteria as well as different regression specifications. Our results indicate that although no missing data estimator is globally best many of the computationally simpler first order methods perform as well as the more expensive higher order estimators, contrary to some previous findings.     

New methodologies for the 2001 Census in England and Wales

This paper looks at the significant innovations that are being introduced into the 2001 Census in England and Wales. Whilst the traditional concept of collecting information from each person and household in the country at a fixed point is being adhered to, in virtually every other respect the Census in 2001 will be very different from those that have preceded it.     

Integrating post-qualification study into the workplace: The candidates' experience

The PQ framework for qualified social workers has struggled to become consistently established within workplace training and practice organisations across the UK. This is likely to become a focus for change as the Government reviews current structures and attempts to 'modernise the workforce' by encouraging the creation of cultures of post-qualification learning and continuing professional development [PQ/CPD]. This paper argues that the current emphasis upon the rhetoric of 'performance management' needs to be balanced by attention to the realities of integrating operational and professional development demands within socio-cultural contexts. This paper reports and discusses the results of a questionnaire survey into the experiences of registered PQ candidates within a Local Authority SSD. A summary of key results is provided. The discussion identifies a number of themes and strategies for integrating PQ into the workplace. These are based upon a range of attitudinal and practical factors, such as decision-making; supervision; study arrangements; mentoring; and motivation, that cover some of the experiences of candidates. The paper concludes by drawing parallels with similar developments within nursing and recommends that all stakeholders involved in PQ development need to help establish the conditions within practice contexts where social workers can link service and policy initiatives with the requirements for post-qualification study.     

Spinoza in the history of cultural psychology and activity theory

ABSTRACT

This review of the place of Spinoza in the history of cultural-historical activity theory begins with a synopsis of Ilyenkov’s influential essay “Spinoza—Thought as an Attribute of Substance” and adds further points. I go on to look at the historical context of Spinoza’s work, the mixed character of his legacy, and the need to see Spinoza as one moment in an entire historical development.     

How to Win “Spend” and Influence Partners: Lessons in Behavioral Operations from the Outsourcing Game

The Outsourcing Game is a role‐play simulation that has been deployed in industry and academic training courses worldwide. It incorporates the concepts of hidden actions, hidden information, and misaligned incentives, and conveys messages about power, trust, and reputation. The game depicts the adventures of Acme, the brand owner of a product manufactured by an outsourced supply chain. Through a series of negotiations, Acme attempts to influence its partners (two suppliers and two service providers) by distributing its procurement “spend.” These partners, in turn, sway each other via side payments. To simulate the non‐linear shifts in power that occur as outsourcing increases, we represent decision‐making by a voting scheme with uneven vote allocations. This paper analyzes a database of game results to reveal behavioral factors that can undermine conspicuous win–win process improvements. For instance, preferences can be sensitive to the sequence in which the alternatives are encountered; decision‐makers might value not only their own rewards, but also fairness in the allocation of total gains; and effectiveness of negotiation tactics will vary with community norms of acceptable behavior. Along the way we extend the political economics literature about power in block‐based voting by proposing a heuristic approach for incorporating voter preferences.     

Quality of Life in Hong Kong: the Cuhk Hong Kong Quality of Life Index

The CUHK Hong Kong Quality of Life Index, which aims to assess and monitor the quality of life in Hong Kong, is a composite index incorporating both objective and subjective measures. This index, developed by the Faculty of Social Science of The Chinese University of Hong Kong, employs data collected in representative sample surveys and official statistics. A wide range of life domains is covered and the year 2002 is taken as the base year of the study. Index scores demonstrate that in general the quality of life in Hong Kong has improved slightly in 2003; scores of the composite index and the three sub-indices on sectorial performance are somewhat higher than those of the previous year. It is noteworthy that Hong Kong has made noticeable progress and performs as well as many economically advanced societies in certain life domains; yet, the well-being of the people relies on further improvement in others.     

Diagnostic Displays for Assessing Leverage and Influence in Generalized Linear Models

A general technique for assessing leverage and influential observations in Generalized Linear Models is described. The procedure takes the form of Half-Normal plots with envelopes derived from simulation to enhance overall assessment of the model. This procedure of assessment is more informative and provides additional insight compared with procedures based on the largest sample leverage and influence statistics. Application of the method is illustrated with an example in logistic regression.