Confidence bounds and selection of the t best populations

Confidence statements about location (or scale) parameters associated with K populations, which may be used in making selection decisions about those populations, are investigated. When a subset of fixed size t is selected from the K populations a lower bound is obtained for the minimum selected parameter as a function of the maximum non-selected parameter. Tables are produced for the normal means case when the variance is common but unknown. It is pointed out that these tables may be used to find confidence intervals discussed by Hsu (1984     

Expanded confidence intervals

Confidence intervals for location parameters are expanded (in either direction) to some “crucial” points and the resulting increase in the confidence coefficient investigated.Particaular crucial points are chosen to illuminate some hypothesis testing problems.Special results are dervied for the normal distribution with estimated variance and, in particular, for the problem of classifiying treatments as better or worse than a control.For this problem the usual two-sided Dunnett procedure is seen to be inefficient.Suggestions are made for the use of already published tables for this problem.Mention is made of the use of expanded confidence intervals for all pairwise comparisons of treatments using an “honest ordering difference” rather than Tukey's “honest siginificant difference”.     

Tradeoffs in Manufacturing? A Meta‐Analysis and Critique of the Literature

An ongoing, important question in the operations strategy literature pertains to tradeoffs: Can manufacturers focus on multiple priorities simultaneously or achieve strength on multiple capabilities without sacrificing performance of another? In this paper, we accumulate, integrate, and examine the wide spectrum of conclusions reached in the literature concerning tradeoffs using modified meta‐analysis methods. Based on two decades of empirical research in operations strategy, we find that the evidence in the literature indicates manufacturers, on average, do not report experiencing tradeoffs among the competitive dimensions of quality, delivery, flexibility, and cost as suggested by the classical tradeoffs model. Our meta‐analysis also reveals that the way variables are operationalized, whether initiatives are implemented, and the unit of analysis are all related to the degree and nature of the evidence a paper contains with respect to the tradeoffs issue. We interpret our meta‐analysis results in the context of the prevailing model of manufacturing strategy and the theory of performance frontiers. We also discuss how the research designs used in this literature, which are predominantly cross‐sectional, affect the nature of the evidence generated and the conclusions that can be drawn. We go on to suggest research designs that more directly assess the tradeoffs issue.     

Dams,barriers and beating yourself up: shame in groupwork for addressing sexual offending

ABSTRACT

Shame is a powerful emotional experience embedded in prevailing social and cultural norms. It is the judgement or fear of judgement for who we are rather than what we have done. Braithwaite proposes shame can be re-integrative or stigmatising, where re-integrative shaming condemns the behaviour not the person, to enable their re-entry into society. Shame is relevant to sexual offending and its treatment, yet little research has explored how it is expressed or responded to in treatment programmes. We applied conversation analysis and discourse analysis to examine expressions of shame in 12 video-recorded sessions of a court mandated groupwork programme addressing sexual offending. Both social workers and the other men on the programme distinguished between being a bad person (shame) and being responsible for a bad act (guilt) as a way to empathise with the individual, build motivation, instil hope and leverage optimism towards positive change. We demonstrate that shame constitutes topics, resources and actions drawn on to achieve the programme’s rehabilitative aims, including separating the person from the behaviour, as per re-integrative shaming, demonstrating empathy and congruence, and motivating change. We discuss the paradoxes and dilemmas of shame for practice that addresses sexual offending.     

Towards a Theory of Competitive Progression: Evidence from High‐Tech Manufacturing

This study replicates and extends Ferdows and De Meyers' observed ‘sand cone’ model of cumulative competitive capabilities by means of Roth's related competitive progression theory (CPT). Using path analysis, we model and test the relationships among the generic competitive capability constructs of conformance quality, delivery reliability, volume flexibility, and low cost as predicted by CPT. Our results, drawn from a sample of high‐tech manufacturers, provide further evidence that on average, these four capabilities are acquired both cumulatively and in that sequence. We also find that each generic capability increases operational know‐how and reduces non‐value‐added directly and/or indirectly through the enhancement of successive capabilities in the progression, which in turn improves profitability. The paper contributes a theoretical rationale for the observed sand cone effect, describes how the competitive progression acts to influence accelerated organizational learning over an innovation cycle, and offers evidence that combinative capabilities have strategic value for high‐tech manufacturers.     

“Moved on”? An exploratory study of the Cashless Debit Card and Indigenous mobility

What is the relationship between the first two trials of the Cashless Debit Card (CDC) and Indigenous mobility? In Ceduna, Vincent conducted ethnographic research into lived experiences of the first CDC trial. In the East Kimberley, Klein conducted 51 structured interviews with people on the card and 37 semi-structured interviews with key informants. Markham used regression analysis of net migration rates at the Statistical Area 2 level to determine whether the CDC trial sites were associated with greater net population loss in 2016 census data than comparable locations. Our exploratory study finds significant local talk of displacement arising from the introduction of the CDC, as well as discussion of short-term trips away from the trial sites being made more difficult. The regression analysis found that the net migration rate was 9.3 per cent points (95% CI: 2.0, 16.5) lower in Ceduna, Wyndham and Kununurra when compared with a group of comparable towns, and 5.2 per cent points (95% CI: 0.9, 9.5) lower when compared with Australia as a whole, meaning that the populations of these towns declined faster than those of comparable towns. Policy effects on mobility should be taken seriously by researchers and policymakers when considering place-based welfare policy.     

Multicultural and International Research in Four Career Development Journals: An 11‐Year Content Analysis

In an increasingly diverse and global society, it is important to evaluate the cultural responsiveness of vocational research. The authors examined trends in the publication of multicultural‐focused articles from 2005 to 2015 in 4 journals: The Career Development Quarterly, the Journal of Career Assessment, the Journal of Career Development, and the Journal of Vocational Behavior. Methodological, thematic, and construct trends were examined across the identity categories of gender, socioeconomic status, sexual orientation, gender identity, ability status, religion/spirituality, age, immigration status, and international research. Results showed increases in social class and international research but continued neglect of sexual orientation, gender identity, and ability status. The themes of career exploration and promoting agency received the most attention; equity in work settings received the least. Findings suggest that more research with underrepresented groups is needed and that counselors may need to rely on resources outside the current literature to ensure best practices with these clients.     

The Link Between the Marital Bond and Future Triadic Family Interactions

This study examined how the marital bond, as indexed through the Oral History Interview (OHI), is related to future triadic family interactions. Families (N = 108), with a 7–9‐year‐old child, participated in a longitudinal study (the Family Health Project) examining children's emotional development throughout the transition to adolescence. Parental cohesion and family cohesion, warmth, structure, and problem solving were assessed via behavioral observation during family problem‐solving discussions and parent‐child teaching interactions 18–24 months after the OHI. Results indicated that the marital bond was predictive of parental cohesion, family cohesion, warmth, and structure during teaching interactions. The marital bond was not significantly predictive of family problem solving or parental cohesion in problem‐solving interactions.