How Valid Is Negotiation Research Based on Student Sample Groups? New Insights into a Long‐Standing Controversy

Although a considerable amount of research has examined the impact of experience on negotiation behavior and performance, we still know very little about the usefulness of student samples in negotiation research because most studies have compared the performance of inexperienced students with those who had received some kind of extensive negotiation training or with experienced professional negotiators(s). Against this background, we investigate whether the results obtained from trained student samples are generally similar to those of professional negotiators. Generally, our data confirm our hypotheses that students with some negotiation training and experience perform better than untrained student negotiators and that they are not significantly outperformed by professional negotiators. From this, we conclude that many questions in the field of negotiation research can be effectively tested by using trained students as experimental subjects.     

Radiological, forensic, and anthropological studies of a concrete block containing bones

Multidisciplinary forensic, anthropological, and radiological studies of bone fragments encased in a concrete block were carried out to determine whether or not the bones were human. Multislice computed tomography (MSCT) investigation was performed before the bones were removed from the concrete. MSCT study pinpointed the location of the bone fragments within the concrete block, which was helpful for their extraction and recovery, and identified most of their types and nature. Osteological study on dry bones provided more accurate identification of the bones and of their side. According to both methods, the human skeletal remains were compatible with those of a child, aged 8-13 years old, with a minimum height of 128 cm. Neither investigation identified sex or racial phenotype. Both studies identified the skeletal remains as consisting of two animal and five human bones. Furthermore, both methods revealed that the concrete completely encased bones, suggesting a secondary burial.     

Assessing measurement invariance of PCL-R assessments from file reviews of North American and German offenders

Cross-cultural research on psychopathy necessitates assessment methods that are generalizable across linguistic and cultural differences. Multiple-group confirmatory factor analysis was used to compare the factorial structure of Psychopathy Checklist-Revised (PCL-R) assessments obtained from file reviews of North-American (N = 2622) and German (N = 443) male offenders. The analyses indicated that the 18 item, 4-factor model of the PCL-R obtained with the standard PCL-R protocol (interview and file review) also holds for file review data. On a factor-by-factor level, the data are commensurate with strong factorial invariance of factor loadings and item thresholds for the Interpersonal and Lifestyle factors, and with likely metric invariance for the Affective factor. The Antisocial factor showed structural differences between the two samples. The results imply that cultural or environmental factors more strongly influence the judgment and/or expression of antisociality. Based on the results, cross-cultural comparisons between North-American and German offenders in terms of PCL-R psychopathy should be limited to the Interpersonal and Lifestyle factors. Further research using data obtained through the standard protocol (i.e., interview plus file information) is encouraged.     

Quo vadis Japanese ODA? New developments in Japanese aid policies

Japan positioned itself in a special situation among the aid donor countries. This paper presents the trends in Japanese Official Development Aid policies in the new Millennium, provides an overview and discussion of the characteristics of Japanese ODA, and examines the different views and critiques that have arisen regarding Japan’s development aid policies. The paper’s goal is to highlight and interpret the latest developments and reforms of Japan’s ODA administration and strategies, its strengths and weaknesses, and to understand how ODA is becoming a more strategic, a stronger political, diplomatic and foreign policy tool in the hands of the Japanese government.

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The numerical Hatze-model: also qualified for calculations on children?

The aim of this study was to find out whether the Hatze-model, which is specifically designed for adults, is suitable for calculations on children as well. By means of that program it is possible to calculate various parameters of the human body. After the collection of data and analysis of the results according to Hatze it becomes evident that this model provides good results only for the calculation of the total body mass. As regards the body segments, there are significant under- and overestimations. The same applies to the calculation of mean body density. Indeed there is a significant gender dimorphism indicating that girls have a higher fraction of body fat than boys. However, the values are far below those described in the literature. Due to the formula, the values of the centres of gravity are linear and congruent in both sides of the body. Interpretation of the results is difficult, as there are no valid reference values. Furthermore the program is not able to take characteristic shapes and proportions of children into account. For this reason 88% of the children are defined as either pregnant or obese. In summary, the study shows that the present model should not be used to calculate children and the human models have to be designed specifically for children.     

Interpreting model results — examples from an energy model

With the increasing use of complex computer models for high-level policy decisionmaking, the problem of correctly interpreting and communicating model results becomes a more general concern. This paper traces misconceptions about the use of models to the existence of different conceptions of the term model. Policy models are quite often less theory-based than models in the traditional disciplines, especially in cases where the policy models deal with the long-term developments of sociotechnical systems. The authors examine the use of an example of one such model. Generalising from the authors' experiences in other fields of application, e.g., global modeling, the problems of interpreting model results are discussed. The proper use of future-oriented policy models is clarified by the introduction of typologies implying distinctions, e.g., between forecasting, what-if, and learning models, and between different levels of results, viz. model outcomes, model inferences and policy-issue oriented interpretations.     

Preventing suicide in prisons, part I. Recommendations from the International Association for Suicide Prevention Task Force on Suicide in Prisons

In 2000 the Department of Mental Health of the World Health Organization (WHO) published a guide named Preventing Suicide. A Resource for Prison Officers as part of the WHO worldwide initiative for the prevention of suicide. In 2007 there are new epidemiological data on prison suicide, a more detailed discussion of risk factors accounting for the generally higher rate of suicide in correctional settings in comparison to the general population, and several strategies for developing screening instruments. As a first step, this paper presents an update of the WHO guide by the Task Force on Suicide in Prisons, created by the International Association for Suicide Prevention. A second paper, by the same Task Force, will present some international comparisons of suicide prevention services in correctional facilities.     

Perceived Interparental Conflict and Early Adolescents’ Friendships: The Role of Attachment Security and Emotion Regulation

Although there is strong evidence for the effect of interparental conflict on adolescents' internalizing and externalizing problems, little is known about the effect on the quality of adolescents' relationships. The current study investigates the link between adolescents' friendships and interparental conflict as reported by both parents and adolescents. It considers early adolescents' emotion regulation ability and attachment security as mediators. The analysis is based on a longitudinal study with two waves separated by 12?months. The participants were 180 two-parent families and their adolescent children (50.5?% girls), the average age of the latter being 10.61?years (SD?=?0.41) at the outset (Time 1). Binomial logistic regression analysis revealed that perceived interparental conflict increased the risk of instability in friendship relationships across the 1-year period. Structural equation modeling analysis indicated that the association between perceived interparental conflict and friendship quality was mediated by emotion regulation and attachment security. The discussion focuses on mechanisms whereby interparental conflict influences early adolescents' friendship relationships.     

How Leadership and Public Service Motivation Enhance Innovative Behavior

Prior research has linked the innovative behavior of public sector employees to desirable outcomes such as improved efficiency and higher public service quality. However, questions regarding the drivers of innovative behavior among employees have received limited attention. This article employs psychological empowerment theory to examine the underlying processes by which entrepreneurial leadership and public service motivation (PSM) shape innovative behavior among civil servants. Based on three‐wave data from 281 Chinese civil servants and their 59 department heads, entrepreneurial leadership is found to positively influence subordinates' innovative behavior by enhancing two dimensions of psychological empowerment: meaning and impact. Additionally, PSM was found to influence subordinates' innovative behavior by enhancing the dimensions of meaning and competence. These findings suggest that to facilitate innovative behavior among employees, public organizations should consider introducing training that encourages leaders to serve as entrepreneurial role models and recruit employees with high levels of PSM.