Using data augmentation to correct for non-ignorable non-response when surrogate data are available: an application to the distribution of hourly pay

Summary.  The paper develops a data augmentation method to estimate the distribution function of a variable, which is partially observed, under a non-ignorable missing data mechanism, and where surrogate data are available. An application to the estimation of hourly pay distributions using UK Labour Force Survey data provides the main motivation. In addition to considering a standard parametric data augmentation method, we consider the use of hot deck imputation methods as part of the data augmentation procedure to improve the robustness of the method. The method proposed is compared with standard methods that are based on an ignorable missing data mechanism, both in a simulation study and in the Labour Force Survey application. The focus is on reducing bias in point estimation, but variance estimation using multiple imputation is also considered briefly.     

Lower-Status Participation and Influence:Task Structure Matters

Status hierarchies readily form in groups and , once established , limit lower-status group members' opportunities for contributing to and influencing group decisions . Recent findings , however , suggest that the type of task on which a group works may allow lower-status individuals to break through power and prestige orders in a cooperative way while conflicting with ideas of their higher-status group members . In this article , we review a research program that investigates how task structure relates to status and influence in small groups . In one experiment, using groups of three female students as participants , we found that open-structured tasks allow lower-status group members to participate , receive positive evaluations , and improve their status more than closed-structured tasks . In a second experiment, using groups of two female students and a female experimenter as participants , we found that open-structured tasks and lower-status confederates foster more divergent thinking and indirect influence than closed-structured tasks and higher-status sources . Our findings contribute to the understanding of how immediate problem-solving environments contribute to status change and influence in small groups.     

A jackknife variance estimator for unequal probability sampling

Summary.  The jackknife method is often used for variance estimation in sample surveys but has only been developed for a limited class of sampling designs. We propose a jackknife variance estimator which is defined for any without-replacement unequal probability sampling design. We demonstrate design consistency of this estimator for a broad class of point estimators. A Monte Carlo study shows how the proposed estimator may improve on existing estimators.     

Effects of Commitment and Psychological Centrality on Fathering

Propositions from identity theory suggest that interactional and affective commitment to a role identity affects the psychological centrality of that role identity. In turn, the centrality of one's role identity translates into role performance ( Stryker & Serpe, 1994 ). This conceptual model was tested with a sample of 186 fathers in first marriages with at least one child 18 years or younger. The results showed that fathers who perceived their wives as evaluating them positively as fathers were more likely to report higher levels of involvement in child‐related activities and place greater importance on the father role identity. This prominence, in turn, was associated with higher levels of involvement.     

INDIVIDUALS WITH INTELLECTUAL DISABILITY AND MENTAL ILLNESS: A LITERATURE REVIEW

This review highlights the urgency for a seamless and co‐ordinated approach to service delivery for people with intellectual disability and mental illness. There is emerging evidence of the high prevalence of mental illness in persons with intellectual disability. The notion that people with intellectual disability can have mental illness has only been recently acknowledged. Furthermore, people with intellectual disability also experience a wide range of psychiatric disorders often seen in the general population. Despite of recent developments in treatment options for these people, many of them continue to experience barriers in accessing mental health services.     

Nationalism, activism, and the canadian sociology and anthropology community, 1967–1985

Debates have again resurfaced in Canada over the hiring of foreign academics to work in Canadian universities. Many are predicting a shortage of qualified Canadian graduates able to cope with the expected influx of echo generation students. In the face of such a crisis, some are calling for the elimination of the Canadians First policy now in place to limit the number of foreign academics taking jobs in Canada. This situation is not new. This article looks past traditional discussions of the Canadianization movement of the 1960s and 1970s, which tend to focus on epistemological issues, and examines it as a social movement. From this perspective, Canadian sociologists and anthropologists contributed significantly to the movement to Canadianization sociology and anthropology in Canada, as well as other disciplines. The hope here is that a proper historical understanding of the Canadianization movement, and its successes, will help us in evaluating possible solutions to the coming crisis.     

Infant Manual Exploration of Objects,Surfaces, and Their Interrelations

Although a considerable amount is known about the development of object manipulation during the 1st year, less is known about how infants manually explore surfaces and relate objects to surfaces. To address these issues, 60 infants (20 each at 6, 8, and 10 months of age) were presented hard and soft objects on tabletop surfaces, which varied in terms of their material properties. Tabletop surfaces were either liquid, discontinuous, flexible, or rigid. Results indicated that infants explored the objects, surfaces, and their interactions selectively, tailoring their manual actions to the material properties of the objects or surfaces. In some instances, selectivity increased with age. The implications of these findings for understanding the origins of problem solving and tool use are considered.     

Green Coffee? The Contradictions of Global Sustainability Initiatives from an Indian Perspective

The ‘Common Code for the Coffee Community’ (4C) was developed as a multi‐stakeholder initiative designed to embed sustainability principles in the mainstream coffee industry. It elicited widespread condemnation from producer countries during its initial ‘testing phase’. Focusing on Indian opposition, this article comes to the conclusion that, unless key issues as defined by producer‐country interests are addressed, any initiatives to advance the economic, social and environmental sustainability of the industry are likely to be seen as vehicles within a neo‐imperialist agenda seeking to establish consumer‐country control over the product supply chain.     

One for All and All for One? A New Generation of Co-operatives Emerges

Business owners who traditionally organised their marketing and supply activities through co-operatives are changing their strategic orientation with increased frequency. The result is a “new generation” of co-operatives sweeping through several industries. This article examines how traditional co-operatives differ from the typical investor-owned firm and some of the motivating factors leading to the emergence of the new generation of co-operatives. These new generation co-operatives (NGCs) appear to be organisational hybrids combining aspects of investor ownership and co-operative ownership structures. The article describes differences between the traditional and new generation co-operatives with the objective of providing implications for managers who are faced with the movement toward more entrepreneurial organisations in their industries.