A new preventive intervention for children of substance‐abusing parents: Results of a randomized controlled trial

Children of substance‐abusing parents (COS) are at risk for developing psychosocial problems. We evaluated the effectiveness of the manualized, 9‐session psycho‐educational preventive intervention “TRAMPOLINE” (PE) for 8–12‐year‐old COS compared with a non‐educational “fun and play” group (NE) of equal length delivered by social workers in 27 German counselling centres. A randomized controlled trial was conducted to compare PE (n = 130) and NE (n = 88) outcomes at baseline, post intervention, and 6‐month follow‐up. Primary outcomes were related to stress and coping; secondary were also examined. Analyses were conducted using baseline‐adjusted repeated measures linear mixed models. Five outcomes revealed improvements both in PE and NE, four of which were more pronounced in PE, and one more pronounced in NE. Small but significant group differences in favour of PE were found in “social isolation” and “addiction‐related knowledge.” Children from both groups reported reduced mental distress, reduced avoidance in coping with family stress, improved self‐perceived autonomy, and a better parent–child relationship. No changes were observed in self‐efficacy, physical stress symptoms, and in other health‐related quality of life aspects. TRAMPOLINE can instill positive changes in COS by reducing mental distress and social isolation.     

Is migration an effective adaptation to climate-related agricultural distress in sub-Saharan Africa?

Population and Environment - Migration is often considered a form of climate change adaptation by which individuals, households, and communities seek to reduce the risks associated with climate...     

Kitchen Hygiene in the Spotlight: How Cooking Shows Influence Viewers’ Hygiene Practices

Poor hygiene when handling food is a major cause of foodborne illness. To investigate whether hygiene practices visible in television cooking shows influence viewers’ kitchen hygiene, a study on the adoption of demonstrated hygiene behavior was conducted under controlled, experimental conditions. In a study ostensibly on cooking by following recipes participants (n = 65) were randomly assigned to one of three conditions, in which they watched a cooking video that differed only with regard to the hygiene behavior of the chef. In condition 1, the chef engaged in poor hygiene practices while preparing the dish, in condition 2 the chef's hygiene behavior was exemplary and in condition 3, the chef's hygiene behavior was not visible (control condition). After watching the video, participants were instructed to cook the recipe individually in the fully equipped laboratory kitchen. Cooking sessions were videotaped and experimenters blind to condition coded hygiene lapses committed by participants. The level of kitchen hygiene displayed in the cooking video significantly affected hygiene practices of participants cooking the recipe. Participants who had watched the cooking video with correct hygiene practices committed significantly fewer hygiene lapses than those who had watched the video with poor hygiene practices. From a risk communication perspective, TV cooking shows are well placed to convey knowledge of essential hygiene practices during food preparation to a broad audience. To facilitate behavioral change toward safer food‐handling practices among viewers, visibly performing correct hygiene practices in cooking shows is a promising strategy.     

Zwei Dimensionen der Internationalisierung: Eine empirische Analyse deutscher Grossunternehmen

In order to analyze the impact of internationalization on national institutions, methods of measuring the degree of internationalization are required. The article presents a method for measuring the degree of internationalization of firms. We assume that the internationalization of firms has several dimensions which cannot be combined into one index, and therefore, have to be distinguished. The first dimension refers to the production activities of firms abroad; the second is measured by the proximity of the firm to international capital. Using a group of the 100 largest German companies both dimensions are empirically tested. Factor analysis supports the assumption that both dimensions, the product-oriented and the financial dimension, do not co-vary and can be separated. Using the measurements we can rank firms into higher and lower degrees of internationalization.     

Ein anderer Blick auf das Soziale Lernen: Nachteile der Schulklasse durch Selbstbeherrschung überwinden

Social learning is often just a euphemism for a significant degree of discipline and self-control, which is required of students. In first place social learning is supposed to compensate for the unavoidable shortcomings of the school class in regard to optimal learning. In support of this thesis exemplary conceptual educational remarks and empirical results of group psychology and classroom management are used.     

Happiness functions with preference interdependence and heterogeneity: the case of altruism within the family

This study investigates the prevalence and extent of altruism by examining the relationship between parents’ and their adult children’s subjective well-being in a data set extracted from the German Socio-Economic Panel. To segregate the share of parents with altruistic preferences from those who are selfish, we estimate a finite mixture regression model. We control for various sources of potential bias by taking advantage of the data’s panel structure. To validate our modeling approach, we show that predicted altruists indeed make higher average transfer payments.      

Explaining Entrepreneurial Behavior: Dispositional Personality Traits,Growth of Personal Entrepreneurial Resources,and Business Idea Generation

Applying a life‐span approach of human development and using the example of science‐based business idea generation, the authors used structural equation modeling to test a mediation model for predicting entrepreneurial behavior in a sample of German scientists (2 measurement occasions; Time 1, N= 488). It was found that recalled early entrepreneurial competence in adolescence predicted business idea generation. This link was mediated by entrepreneurial human and social capital. Moreover, an entrepreneurial Big Five profile was associated with early entrepreneurial competence and predicted entrepreneurial human and social capital. Results underscore the relevance of the long‐neglected developmental approach to entrepreneurship.     

Statistical inference for oscillation processes

ABSTRACT

A new model for time series with a specific oscillation pattern is proposed. The model consists of a hidden phase process controlling the speed of polling and a nonparametric curve characterizing the pattern, leading together to a generalized state space model. Identifiability of the model is proved and a method for statistical inference based on a particle smoother and a nonparametric EM algorithm is developed. In particular, the oscillation pattern and the unobserved phase process are estimated. The proposed algorithms are computationally efficient and their performance is assessed through simulations and an application to human electrocardiogram recordings.     

Political regimes and the family: how sex-role attitudes continue to differ in reunified Germany

We exploit the German separation and later reunification to investigate whether political regimes can shape attitudes about appropriate roles for women in the family and the labor market. During the divided years, East German institutions encouraged female employment, while the West German system deterred women, in particular mothers, from full-time employment. Our results show that East Germans are significantly more likely to hold egalitarian sex-role attitudes than West Germans. Despite a scenario of partial policy convergence after reunification, we find no evidence for a convergence process in gender attitudes. Indeed, if anything, the gap in attitudes rather increased.