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Der verbreiteten Annahme einer ständigen Gewaltzunahme an Schulen stehen bisher nur wenige Studien im Zeitvergleich gegenüber. Der vorliegende Beitrag will diese Lücke schließen, indem er Ergebnisse einer aktuellen Replikationsstudie vorstellt und damit die Frage beantwortet, ob die Gewalt an Schulen im Vergleich zur Mitte der 1990er Jahre zu- oder abgenommen hat. Anhand einer repräsentativen sächsischen Stichprobe zeigt sich, dass im Jahr 2014 im Vergleich zu 1996 über weniger Gewalt an Schulen berichtet wird. Dies betrifft die Gewalt unter Schü ler(inne)n und die Gewalt gegen Lehrkräfte. Parallel hat die Interventionsbereitschaft unter der Lehrer- und Schülerschaft zugenommen. Zugleich macht die Studie auf differente Entwicklungstrends zwischen den Schülergruppen aufmerksam. Trotz eines insgesamt niedrigen Gewaltniveaus im Vergleich zur Mitte der 1990er Jahre legen die Befunde den Schluss nahe, bei den Präventionsbemühungen nicht nachzulassen.
Veryfew studies have investigated the widely held assumption that violence in schools has constantly increased in recent years. The current study aims to fill this gap by presenting results of a recent replication study in Germany, as well as answering the question as to whether violence in schools increased or decreased in comparison with the mid-1990s. Based on a representative sample of Saxon students, this study shows that less violence was reported in schools in 2014 compared to 1996. This relates to both violence among students and their violent actions against teachers. Moreover, the willingness of teachers and students to intervene has increased. At the same time, this study draws attention to developmental trends between groups of students. Despite a general low level of violence in schools compared to the mid-1990s, the findings suggest that prevention efforts must be continued.
Objective: This study examined the sustained efficacy of a media violence intervention in reducing media violence use, normative acceptance of aggression, and aggressive behavior in adolescents. It used an experimental design to evaluate the effects of the intervention over a period of 30 months. Method: N = 627 German 7th and 8th graders were assigned to a 5-week school-based intervention to reduce media violence use or to a no-intervention control group. Media violence use, normative acceptance of aggression, and aggressive behavior were measured 3 months before the intervention (T1), 7 months post intervention (T2), and at 2 follow-ups 18 (T3) and 30 (T4) months after the intervention. This article focuses on the findings from the 2 follow-ups. Results: Controlling for baseline levels and various demographic covariates, media violence use at T2, T3, and T4 and self-reported physical aggression at T3 were significantly lower in the intervention group, and the indirect path from the intervention to T3 aggression via T2 media violence use was significant. Lower T2 media violence use predicted lower T3 normative acceptance of aggression among participants with lower initial aggression. No effects on nonviolent media use and relational aggression were observed. Conclusion: The findings show that a short class-based intervention can produce lasting changes in media violence use that are linked to a decrease in aggression.
This article presents the design and a first pilot evaluation of the computer-based training program Calcularis for children with developmental dyscalculia (DD) or difficulties in learning mathematics. The program has been designed according to insights on the typical and atypical development of mathematical abilities. The learning process is supported through multimodal cues, which encode different properties of numbers. To offer optimal learning conditions, a user model completes the program and allows flexible adaptation to a child's individual learning and knowledge profile. Thirty-two children with difficulties in learning mathematics completed the 6-12-weeks computer training. The children played the game for 20 min per day for 5 days a week. The training effects were evaluated using neuropsychological tests. Generally, children benefited significantly from the training regarding number representation and arithmetic operations. Furthermore, children liked to play with the program and reported that the training improved their mathematical abilities.
The objective of this study was to examine the impact of an indoor climbing training and detraining program on core/handgrip strength and trunk mobility in men and women. 28 young sedentary adults participated in this study and were assigned to an intervention (30+/-3 years) or a control (29+/-2 years) group. The intervention group participated in 8 weeks (2 times/week) of indoor climbing training, followed by 8 weeks of detraining. Tests included the measurement of maximal isometric strength (MIS) of the trunk flexors/extensors, the assessment of trunk mobility in the sagittal (SAP) and the coronal (CRP) plane as well as testing of handgrip strength. After training, significant improvements were observed in MIS of the trunk flexors/extensors (similar to 19-22 %, all p<0.01), in trunk mobility in SAP/CRP (similar to 14-19 %, all p<0.01), and in handgrip strength (similar to 5 %, p<0.01). During detraining, MIS (similar to 12-13 %, all p<0.01) and trunk mobility (similar to 7-10%, all p<0.01) deteriorated significantly, whereas handgrip strength remained. This indoor climbing training program conducted in sedentary adults proved to be feasible (i.e., attendance rate of 89.4%) and effective. It is suggested that indoor climbing should be permanently conducted to maintain the observed improvements in core muscle strength and trunk mobility.