A Practical Two‐Step Method for Testing Moment Inequalities

This paper considers the problem of testing a finite number of moment inequalities. We propose a two‐step approach. In the first step, a confidence region for the moments is constructed. In the second step, this set is used to provide information about which moments are “negative.” A Bonferonni‐type correction is used to account for the fact that, with some probability, the moments may not lie in the confidence region. It is shown that the test controls size uniformly over a large class of distributions for the observed data. An important feature of the proposal is that it remains computationally feasible, even when the number of moments is large. The finite‐sample properties of the procedure are examined via a simulation study, which demonstrates, among other things, that the proposal remains competitive with existing procedures while being computationally more attractive.     

Constructions of a Lynching

This paper examines the effects of white violence as carried out against a subordinate black community in a small southern town during 1900. The aftermath, as perceived by present-day residents, and the emergent constructions of the event are explored. It is suggested that the present reality constructions of blacks and whites continue to reflect the significance these historical events have had for group meanings and intergroup relations.     

Genetically Engineered Plants, Endangered Species, and Risk: A Temporal and Spatial Exposure Assessment for Karner Blue Butterfly Larvae and Bt Maize Pollen

Genetically engineered maize (Zea mays) containing insecticidal endotoxin proteins from Bacillus thuringiensis (Bt) delta-endotoxin proteins has been adopted widely in the Midwestern United States. The proteins are toxic to several lepidopteran species and because a variety of maize tissues, including pollen, may express the endotoxins, the probability of exposure to nontarget species, including endangered species, needs to be understood. The objective of this study was to assess the potential temporal and spatial exposure of endangered Karner blue butterfly larvae (Lycaeides melissa samuelis) to Bt maize pollen in Wisconsin using probabilistic exposure techniques and geographic information systems analysis. Based on degree-day modeling of butterfly phenology and maize pollen shed, there is some potential for temporal exposure of larvae to maize pollen. However, in the majority of years and locations, maize pollen shed most likely will occur after the majority of larval feeding on wild lupine (Lupinus perennis). The spatial analysis indicates that some Karner blue butterfly populations occur in close proximity to maize fields, but in the vast majority of cases the butterfly's host plant and maize fields are separated by more than 500 m. A small number of potential or existing Karner blue butterfly sites are located near maize fields, including sites in two of the four counties where temporal overlap is most likely. The exposure assessment indicates that these two counties should receive the highest priority to determine if Karner blue butterfly larvae are actually at risk and then, if needed, to reduce or prevent exposure.     

Interkulturelle Kompetenz in der Polizei: Qualifizierungsstrategien

Increasing tension and scandal-laden conflicts with members of ethnic minorities during the 1990s make it clear, that the German police force is still not satisfactorily prepared to deal with a multi-cultural society. An immediate reaction was the engagement of training programmes, giving higher-rank officials something to present as an approach to solving the problem. This can apparently be seen as cosmetic change without effect on the structure and culture of the organisation. This work attempts to map the potential for sustainable development of intercultural competence via training programmes, based on the results of international research on police work. Four classical models of intercultural training are described, and their suitability for further education within the police analysed. Starting from the difficulties of determining the actual competency requirements specific in the field, and the basic problems of mediating and acquiring inter-cultural skills, the article concludes with a discussion of sustainable education strategies, which extend to fundamental questions of organisational development.     

Statusmasse light: Statusskalen bei unzureichenden Berufsangaben

Using prestige and SES measures requires information on the occupation performed. Because gathering and coding this information is time consuming and expensive, appropriate data are often missing. This article presents proxy-scales that may be used in this situation. These scales are derived from original status measures on the basis of commonly available variables. After presenting the derived status scales their validity is examined. It turns out that they capture approximately half of the variance of the original measures. Using a simple status attainment model, the utility of the derived status scales is demonstrated. Finally, we discuss how the scales may be adjusted to other data structures.     

The operating characteristic of double sampling plans by variables when the standard deviation is unknown

Summary We deal with double sampling plans by variables for a one-sided specification limit when the quality characteristic is normally distributed with unknown standard deviation. An algorithm is presented that allows to calculate the OC of the sampling plans proposed by Bowker and Goode (1952). We give several examples. Furthermore, it is shown that the algorithm carries over to calculating the OC of the double-stage t-test. The authors wish to thank Yvonne K?llner and Timor Saffary for technical support.     

What Are the Ideal Characteristics of Empirically Supported Treatment Adopters?

There has been a clear and consistent shift in social work practice from offering treatment as usual to implementing empirically supported treatments (ESTs). As social work researchers and practitioners continue to evaluate the effectiveness of ESTs, their impact on clinical outcomes, and the various obstacles to their adoption, a developing literature could offer some guidance on characteristics of EST adopters. This article provides a beginning discussion of the ideal characteristics of EST adopters both at the organizational and individual levels. While this is a developing area of study, there are some important findings that could better serve community-based organizations, their work force, and the communities they serve.     

Correspondence

Abstract

Ralph Nader Presents Civics for Democracy, A Journey for Teachers and Students, by Katherine Isaac. A project of the Center for Study of Responsive Law and Essential Information. Washington, DC: Essential Books, 1992. 390 pages. Paperbound. ISBN 0-936758-32-5. Reviewed by Gregory A. Levitt.     

The appropriation of American war memories: a critical juxtaposition of the Holocaust and the Vietnam War

This article delineates and critically juxtaposes the differential public commemorations of the Vietnam War and the Holocaust in the US. We elucidate how the tragedies of the Holocaust have been integrated into US public memory as a central part of the American story, solidifying the image of the United States as a powerful and moral nation that rescues desperate people from tyranny. In contrast, public commemorations of the highly divisive Vietnam War are sparse, if at all, in great part because they would re-ignite questions about the role of the US in Vietnam and in the suffering of its victims. While the Holocaust enables the United States to re-narrate national glory, the Vietnam War calls attention to US defeat and upsets the narrative of rescue and liberation. Through a critical juxtaposition of these two public memories, we assert that the moral and political divisiveness of the Vietnam War constitutes one unacknowledged source of the ascendancy and centrality of the Holocaust in American memory. Through our relational analysis of differential public memories, we draw on and contribute to the field of memory studies.