Using Predictive Risk for Process Control

When monitoring highly capable processes, it is often desirable to tolerate small instabilities in order to avoid tempering. One approach in this setting is to monitor the capability of the process dynamically and signal if the estimated capability reaches an unacceptably low level. We suggest that monitoring the probability of the next item not falling between the specification limits is a more natural scale to evaluate risk, and offers appreciable flexibility. We use a statistical model and a window of data to evaluate this probability and decide if the process should be halted immediately based on that estimate. The properties of this method are explored numerically and a case study is provided.     

Group living decisions as youths transition to adulthood

This study follows teens through young adulthood as they transition to independent living. We focus on a little studied issue: why some youths live in groups rather than alone or with parents. This choice is important because the size of the group has a substantial impact on the demand for dwelling units; the more youths per dwelling the lower is aggregate demand and the greater is population density. Our study also adds to the knowledge of which factors influence youths' choice of destination as they leave the parental home. The empirical testing uses a discrete hazard model within a multinomial logit framework to allow for more than one possible state transition. We find that economic variables have little impact on the decision of whether to exit to a large versus a small group, while socio-demographic variables matter. We also test a new push-pull hypothesis and find that the pull of economic variables on the probability of exiting the parental home increases as youths reach their mid to late twenties. Received: 15 July 1999/Accepted: 15 May 2000     

LTD and RTI dependence orderings

The authors show how the approach of Capéra à & Genest (The Canadian Journal of Statistics, 1990) can be used to order bivariate distributions with arbitrary marginals by their degree of dependence in the LTD (left‐tail decreasing) or RTI (right‐tail increasing) sense. Some properties of these new orderings are given, along with applications to Archimedean copulas, order statistics and compound random variables.     

DATA‐DRIVEN SMOOTH TESTS AND A DIAGNOSTIC TOOL FOR LACK‐OF‐FIT FOR CIRCULAR DATA

Two contributions to the statistical analysis of circular data are given. First we construct data‐driven smooth goodness‐of‐fit tests for the circular von Mises assumption. As a second method, we propose a new graphical diagnostic tool for the detection of lack‐of‐fit for circular distributions. We illustrate our methods on two real datasets.     

Verifying the Efficacy of Vocational Guidance Programs: Procedures,Problems, and Potential Directions

This article summarizes 12 presentations in Group 7 of the 2007 joint symposium of the International Association for Educational and Vocational Guidance, Society for Vocational Psychology, and National Career Development Association held in Padua, Italy, that focused on procedures for verifying the efficacy of vocational guidance programs. Three themes, or general tensions, emerged from the group's discussion of the presentations: (a) quantitative versus qualitative evidence, (b) public policy needs versus local needs, and (c) comprehensive versus cost‐effective programs. On the basis of these core themes, recommendations are made for 3 potential directions for research that address certain threats and opportunities for the field.     

‘I'm Home for the Kids’: Contradictory Implications for Work–Life Balance of Teleworking Mothers

This study explores the experience of time flexibility and its relationship to work–life balance among married female teleworkers with school‐aged children. Drawing from a larger study of teleworkers from a Canadian financial corporation, 18 mothers employed in professional positions discussed work, leisure and their perceptions of work–life balance in in‐depth interviews. Telework was viewed positively because flexible scheduling facilitated optimal time management. A key factor was the pervasiveness of caregiving, which could result in ongoing tensions and contradictions between the ethic of care and their employment responsibilities. The ideology of ‘intensive mothering’ meant that work schedules were closely tied to the rhythms of children's school and leisure activities. The different temporal demands of motherhood and employment resulted in little opportunity for personal leisure. Time ‘saved’ from not having to commute to an office was reallocated to caregiving, housework or paid employment rather than to time for their self. The women also experienced a traditional gendered division of household labour and viewed telework as a helpful tool for combining their dual roles. Time flexibility enhanced their sense of balancing work and life and their perceived quality of life. At the same time, they did not question whether having the primary responsibility for caregiving while engaged in paid employment at home was fair or whether it was a form of exploitation.     

From Support to Control: A Configurational Perspective on Conjugal Quality

The topic of conjugal quality provides an empirical illustration of the relevance of the configurational perspective on families. On the basis of a longitudinal sample of 1,534 couples living in Switzerland drawn from the study “Social Stratification, Cohesion and Conflict in Contemporary Families,” we show that various types of interdependencies with relatives and friends promote distinct conflict management strategies for couples as well as unequal levels of conjugal quality. We find that configurations characterized by supportive and noninterfering relationships with relatives and friends for both partners are associated with higher conjugal quality, whereas configurations characterized by interference are associated with lower conjugal quality.     

Mentors as Social Capital: Gender,Mentors, and Career Rewards in Law Practice*

Previous studies have demonstrated that mentoring provides numerous career benefits to individuals and organizations. This article advances past work by examining the effects of individuals’ primary and multiple developmental relationships in a longitudinal study of the careers of lawyers. We develop a social capital perspective on mentorship emphasizing reciprocity of exchange, resource mobilization, and normative expectations embedded within mentoring relationships. We empirically assess mentoring benefits across a diverse range of career rewards. The results provide evidence that male lawyers gain more from their mentor‐derived social capital than female lawyers. Specifically, male lawyers with mentors of senior status benefit with elevated earnings, greater perceived fairness in their workplace, and greater work satisfaction. Women with multiple mentors, however, report enhanced work satisfaction. Implications for research on mentoring, social capital, and professional careers are discussed.     

The unique character of involvement in multi-site evaluation settings

As the number of large federal programs increases, so, too, does the need for a more complete understanding of how to conduct evaluations of such complex programs. The research literature has documented the benefits of stakeholder participation in smaller-scale program evaluations. However, given the scope and diversity of projects in multi-site program evaluations, traditional notions of participatory evaluation do not apply. The purpose of this research is to determine the ways in which stakeholders are involved in large-scale, multi-site STEM evaluations. This article describes the findings from a survey of 313 program leaders and evaluators and from follow-up interviews with 12 of these individuals.Findings from this study indicate that attendance at meetings and conferences, planning discussions within the project related to use of the program evaluation, and participation in data collection should be added to the list of activities that foster feelings of evaluation involvement among stakeholders. In addition, perceptions of involvement may vary according to breadth or depth of evaluation activities, but not always both. Overall, this study suggests that despite the contextual challenges of large, multi-site evaluations, it is feasible to build feelings of involvement among stakeholders.