Wie können „bildungsferne“ Gruppen für ein Hochschulstudium gewonnen werden?

Against the background of the relatively low enrolment of students at universities, the minor proportion of academics at the population, and the distinctive social inequality at the transition to the tertiary education in Germany, it is assumed that – additionally to the structure of the educational system – primary and secondary effects of social origin are responsible for that the working class children are underrepresented at German universities. According to empirical findings for high-school graduates, their subjectively expected success in university training in general as well as their educational decision on continuing tertiary education, in particular, are crucial for this empirical fact of persistent inequalities of university education. If one cancels out the secondary effects of social origin, the participation of working class children could be increased more significantly than by neutralizing the primary effects. If one neutralizes also the secondary effects at both, the first and the second transition in the individuals’ educational course, the individuals’ transition to the sector of tertiary education could be increased additionally. Both, the selection and filter processes of the Germany school system as well as individuals’ educational choices provide the counterproductive effect that the talented offspring from socially disadvantaged classes will be diverted away from the higher education and the universities.     

Characterizations of Lorenz curves and income distributions

The purpose of this paper is to propose and justify the use of a few measures of inequality for summarizing the basic information provided by the Lorenz curve. By exploiting the fact that the Lorenz curve can be considered analogous to a cumulative distribution function it is demonstrated that the moments of the Lorenz curve generate a convenient family of inequality measures, called the Lorenz family of inequality measures. In particular, the first few moments, which often capture the essential features of a distribution function, are proposed as the primary quantities for summarizing the information content of the Lorenz curve. Employed together these measures, which include the Gini coefficient, also provide essential information on the shape of the income distribution. Relying on the principle of diminishing transfers it is shown that the Lorenz measures, as opposed to the Atkinson measures, have transfer-sensitivity properties that depend on the shape of the income distribution. Received: 20 July 1998/Accepted: 10 September 1999     

Optimizing trial design in pharmacogenetics research: comparing a fixed parallel group,group sequential,and adaptive selection design on sample size requirements

Two‐stage clinical trial designs may be efficient in pharmacogenetics research when there is some but inconclusive evidence of effect modification by a genomic marker. Two‐stage designs allow to stop early for efficacy or futility and can offer the additional opportunity to enrich the study population to a specific patient subgroup after an interim analysis. This study compared sample size requirements for fixed parallel group, group sequential, and adaptive selection designs with equal overall power and control of the family‐wise type I error rate. The designs were evaluated across scenarios that defined the effect sizes in the marker positive and marker negative subgroups and the prevalence of marker positive patients in the overall study population. Effect sizes were chosen to reflect realistic planning scenarios, where at least some effect is present in the marker negative subgroup. In addition, scenarios were considered in which the assumed ‘true’ subgroup effects (i.e., the postulated effects) differed from those hypothesized at the planning stage. As expected, both two‐stage designs generally required fewer patients than a fixed parallel group design, and the advantage increased as the difference between subgroups increased. The adaptive selection design added little further reduction in sample size, as compared with the group sequential design, when the postulated effect sizes were equal to those hypothesized at the planning stage. However, when the postulated effects deviated strongly in favor of enrichment, the comparative advantage of the adaptive selection design increased, which precisely reflects the adaptive nature of the design. Copyright © 2013 John Wiley & Sons, Ltd.     

Implicit theories in organizational settings: A systematic review and research agenda of implicit leadership and followership theories

Implicit theories play important roles in many areas of human life. In this review, we focus on implicit leadership and followership theories, i.e. implicit assumptions of (good) leaders and followers, respectively. We provide a framework for categorizing the existing research in this field. We use this framework to show the current state of research and to illustrate the gaps in the literature. More precisely, we review which types of prototypes of leaders and followers have been studied, the effects of comparisons between the actual leader (respectively follower) with these activated prototypes as well as the contextual factors that influence prototype activation and prototype fit. We conclude by outlining implications for human resource management and for future research, thereby focusing on research questions that can be used to integrate the distinct paths in implicit leadership and followership theories.     

Economic crisis and the employee: The effects of economic crisis on employee job satisfaction,commitment, and self-regulation

Greece has been suffering a severe crisis starting in about 2009. This paper examines the impact of the recent economic crisis in Greece on employee work-related attitudes via changes in regulatory focus. We collected data in a large and heterogeneous sample of employees (N = 1024) during the crisis and compared them with a matched sample of employees surveyed (N = 882) half a decade earlier, i.e., before the crisis. Participants reported their job satisfaction, organizational commitment and their self-regulatory focus. Results show, as expected, that participants after start of the crisis were lower in extrinsic job satisfaction, affective organizational commitment and were also (unexpectedly) lower in normative commitment, while these attitudinal changes were explained by decreased promotion orientation and increased prevention focus. Rather unexpectedly, pre-crisis and crisis samples did not differ in levels of continuance commitment. This paper makes a relevant contribution by showing that the threatening crisis event does not only have negative effects on work-related outcomes, but also that changes in regulatory foci occur and explain attitudinal change indicating an adaptive mechanism to the threatening situation of an economic crisis.     

Wenn weiße Schafe krampfhaft nach schwarzen suchen ... und sich dabei dreckig machen! Replik auf den Beitrag von Jochen Gläser

Ohne Zusammenfassung     

From consensus to credibility

The development of consensual science has greatly influenced the international environmental negotiation processes. This is not least the case for the Convention on Long‐range Transboundary Air Pollution (CLRTAP). Negotiators as well as regime analysts regard CLRTAP as a successful example of how scientists have succeeded in influencing international policy making through consensus‐building strategies. Drawing on Ulrich Beck's work on reflexive scientization and the concept of ‘stage management’ from the field of the Sociology of Scientific Knowledge (SSK), this paper critically analyzes the role of science in the regulation of transboundary air pollution. It discusses the consensus‐building strategies developed by scientists as well as contemporary strategies for making science matter in regulative work. It is argued that scientific credibility is crucial for attracting political and public attention, but that credibility does not necessarily have to be based on scientific consensus. The challenge for science is not so much to create consensus but to strengthen its credibility by elaborating new relations with its stakeholders.     

Strategies for survival: users' experience of child welfare in three welfare regimes

This paper draws on research into child welfare services in France, Germany and England which compares the subjective experience of mothers who have been in contact with family support and child protection agencies in the three countries. The mothers' stories suggest that successful help‐achieving strategies differ according to the nature of the child welfare regime, and that behaviour which is effective in getting a good response in one country may work less well elsewhere. The stories of two mothers in each of the countries have been chosen to demonstrate how the structures of different social welfare regimes affect the efforts of welfare users to get the help they need.