@article{BuchmannBlomeyerJennenSteinmetzetal.2013,
  author    = {Buchmann, Arlette F. and Blomeyer, Dorothea and Jennen-Steinmetz, Christine and Schmidt, Martin H. and Esser, G{\"u}nter and Banaschewski, Tobias and Laucht, Manfred},
  title     = {Early smoking onset may promise initial pleasurable sensations and later addiction},
  series = {Addiction biology},
  volume    = {18},
  journal   = {Addiction biology},
  number    = {6},
  publisher = {Wiley-Blackwell},
  address   = {Hoboken},
  issn      = {1369-1600},
  doi       = {10.1111/j.1369-1600.2011.00377.x},
  pages     = {947 -- 954},
  year      = {2013},
  abstract  = {There is converging evidence suggesting a particular susceptibility to the addictive properties of nicotine among adolescents. The aim of the current study was to prospectively ascertain the relationship between age at first cigarette and initial smoking experiences, and to examine the combined effects of these characteristics of adolescent smoking behavior on adult smoking. It was hypothesized that the association between earlier age at first cigarette and later development of nicotine dependence may, at least in part, be attributable to differences in experiencing pleasurable early smoking sensations. Data were drawn from the participants of the Mannheim Study of Children at Risk, an ongoing epidemiological cohort study from birth to adulthood. Structured interviews at age 15, 19 and 22 years were conducted to assess the age at first cigarette, early smoking experiences and current smoking behavior in 213 young adults. In addition, the participants completed the Fagerstrom Test for Nicotine Dependence. Adolescents who smoked their first cigarette at an earlier age reported more pleasurable sensations from the cigarette, and they were more likely to be regular smokers at age 22. The age at first cigarette also predicted the number of cigarettes smoked and dependence at age 22. Thus, both the age of first cigarette and the pleasure experienced from the cigarette independently predicted aspects of smoking at age 22.},
  language  = {en}
}
@article{KraheBusching2014,
  author    = {Krah{\´e}, Barbara and Busching, Robert},
  title     = {Interplay of normative beliefs and behavior in developmental patterns of physical and relational aggression in adolescence: a four-wave longitudinal study},
  series = {Frontiers in psychology},
  volume    = {5},
  journal   = {Frontiers in psychology},
  publisher = {Frontiers Research Foundation},
  address   = {Lausanne},
  issn      = {1664-1078},
  doi       = {10.3389/fpsyg.2014.01146},
  pages     = {11},
  year      = {2014},
  abstract  = {In a longitudinal study with N = 1,854 adolescents from Germany, we investigated patterns of change and gender differences in physical and relational aggression in relation to normative beliefs about these two forms of aggression. Participants, whose mean age was 13 years at T1, completed self-report measures of physically and relationally aggressive behavior and indicated their normative approval of both forms of aggression at four data waves separated by 12-month intervals. Boys scored higher than did girls on both forms of aggression, but the gender difference was more pronounced for physical aggression. Physical aggression decreased and relational aggression increased over the four data waves in both gender groups. The normative acceptance of both forms of aggression decreased over time, with a greater decrease for the approval of physical aggression. In both gender groups, normative approval of relational aggression prospectively predicted relational aggression across all data waves, and the normative approval of physical aggression predicted physically aggressive behavior at the second and third data waves. A reciprocal reinforcement of aggressive norms and behavior was found for both forms of aggression. The findings are discussed as supporting a social information processing perspective on developmental patterns of change in physical and relational aggression in adolescence.},
  language  = {en}
}
@article{TetznerBecker2015,
  author    = {Tetzner, Julia and Becker, Michael},
  title     = {How Being an Optimist Makes a Difference: The Protective Role of Optimism in Adolescents' Adjustment to Parental Separation},
  series = {Social psychological and personality science},
  volume    = {6},
  journal   = {Social psychological and personality science},
  number    = {3},
  publisher = {Sage Publ.},
  address   = {Thousand Oaks},
  issn      = {1948-5506},
  doi       = {10.1177/1948550614559605},
  pages     = {325 -- 333},
  year      = {2015},
  abstract  = {This longitudinal study of N = 1,566 adolescents investigated the protective role of optimism in adjustment to parental separation, focusing on two salient challenges faced by adolescents, namely academic achievement and self-esteem. Based on latent change models, the results indicated associations between parental separation and short-term declines in academic achievement as well as short-term and longer term declines in self-esteem. Although optimism in general showed positive associations with academic achievement and self-esteem, its role as a protective factor proved to be particularly important for academic achievement in adjustment following parental separation.},
  language  = {en}
}
@misc{TetznerBecker2015,
  author    = {Tetzner, Julia and Becker, Michael},
  title     = {How being an optimist makes a difference},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {396},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-404537},
  pages     = {9},
  year      = {2015},
  abstract  = {This longitudinal study of N = 1,566 adolescents investigated the protective role of optimism in adjustment to parental separation, focusing on two salient challenges faced by adolescents, namely academic achievement and self-esteem. Based on latent change models, the results indicated associations between parental separation and short-term declines in academic achievement as well as short-term and longer term declines in self-esteem. Although optimism in general showed positive associations with academic achievement and self-esteem, its role as a protective factor proved to be particularly important for academic achievement in adjustment following parental separation.},
  language  = {en}
}
@article{KirschRohlfKrahe2015,
  author    = {Kirsch, Fabian and Rohlf, Helena L. and Krah{\´e}, Barbara},
  title     = {Measuring anger regulation in middle childhood through behavioural observation: a longitudinal validation},
  series = {European journal of developmental psychology},
  volume    = {12},
  journal   = {European journal of developmental psychology},
  number    = {6},
  publisher = {Routledge, Taylor \& Francis Group},
  address   = {Abingdon},
  issn      = {1740-5629},
  doi       = {10.1080/17405629.2015.1101375},
  pages     = {718 -- 727},
  year      = {2015},
  abstract  = {Learning to regulate anger is an important task in childhood development, as maladaptive anger regulation has been linked to a variety of problems, including aggression and social rejection. To assess anger regulation in situ, in a previous study we developed a behavioural observation measure and demonstrated its cross-sectional construct and criterion validity in a sample of 599 children with a mean age of 8.1years. The present study further validated the measure by demonstrating its predictive validity. About 10months after the behavioural observation, participants were asked to imagine two anger-eliciting situations and report what they would do to get rid of their anger. Observed anger regulation strategies at T1 correlated significantly with self-reported regulatory behaviour at T2, suggesting that the behavioural observation measure is an ecologically valid approach for assessing anger regulation in middle childhood.},
  language  = {en}
}
@article{KraheBusching2015,
  author    = {Krah{\´e}, Barbara and Busching, Robert},
  title     = {Breaking the Vicious Cycle of Media Violence Use and Aggression: A Test of Intervention Effects Over 30 Months},
  series = {Psychology of violence},
  volume    = {5},
  journal   = {Psychology of violence},
  number    = {2},
  publisher = {American Psychological Association},
  address   = {Washington},
  issn      = {2152-0828},
  doi       = {10.1037/a0036627},
  pages     = {217 -- 226},
  year      = {2015},
  abstract  = {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.},
  language  = {en}
}
@article{HollKirschRohlfetal.2017,
  author    = {Holl, Anna Katharina and Kirsch, Fabian and Rohlf, Helena L. and Krahe, Barbara and Elsner, Birgit},
  title     = {Longitudinal reciprocity between theory of mind and aggression in middle childhood},
  series = {International Journal of Behavioral Development},
  volume    = {42},
  journal   = {International Journal of Behavioral Development},
  number    = {2},
  publisher = {Sage Publ.},
  address   = {London},
  issn      = {0165-0254},
  doi       = {10.1177/0165025417727875},
  pages     = {257 -- 266},
  year      = {2017},
  abstract  = {Theory of mind is one of the most important cognitive factors in social information-processing, and deficits in theory of mind have been linked to aggressive behavior in childhood. The present longitudinal study investigated reciprocal links between theory of mind and two forms of aggression - physical and relational - in middle childhood with three data waves over 3 years. Theory of mind was assessed by participants' responses to cartoons, and physical and relational aggression were assessed through teacher reports in a community sample of 1657 children (mean age at Time 1: 8 years). Structural equation modeling analyses showed that theory of mind was a negative predictor of subsequent physical and relational aggression, both from Time 1 to Time 2 as well as from Time 2 to Time 3. Moreover, relational aggression was a negative predictor of theory of mind from Time 1 to Time 2. There were no significant gender or age differences in the tested pathways. The results suggest that reciprocal and negative longitudinal relations exist between children's theory of mind and aggressive behavior. Our study extends current knowledge about the development of such relations across middle childhood.},
  language  = {en}
}
@article{KraheBerger2017,
  author    = {Krah{\´e}, Barbara and Berger, Anja},
  title     = {Longitudinal pathways of sexual victimization, sexual self-esteem, and depression in women and men},
  series = {Psychological Trauma: Theory, Research, Practice, and Policy},
  volume    = {9},
  journal   = {Psychological Trauma: Theory, Research, Practice, and Policy},
  number    = {2},
  publisher = {American Psychological Association},
  address   = {Washington},
  issn      = {1942-9681},
  doi       = {10.1037/tra0000198},
  pages     = {147 -- 155},
  year      = {2017},
  abstract  = {Objective: This article presents a longitudinal analysis of the links between sexual assault victimization, depression, and sexual self-esteem by examining their cross-lagged paths among both men and women. Method: Male and female college students (N = 2,425) in Germany participated in the study that comprised 3 data waves in their first, second, and third year of university, separated by 12-month intervals. Sexual assault victimization was assessed at Time 1 (T1) since the age of 14 and at Time 2 (T2) and Time 3 (T3) for the last 12 months. Depression and sexual self-esteem were measured at each wave. Results: Random-intercept cross-lagged panel analyses, controlling for individual differences in depression and sexual self-esteem, showed that sexual assault at T1 predicted depression and lower sexual self-esteem at T2, and depression and lower self-esteem at T2 predicted sexual assault victimization at T3. In addition, significant paths were found from T1 depression to T2 sexual assault victimization and from T2 sexual assault victimization to depression at T3. Sexual victimization at T1 was indirectly linked to sexual victimization at T3 via depression at T2. Both depression and sexual self-esteem at T1 were indirectly linked to sexual victimization at T3. The paths did not differ significantly between men and women. Conclusion: Sexual assault victimization was shown to be a risk factor for both depression as a general mental health indicator and lowered sexual self-esteem as a specific outcome in the domain of sexuality. Moreover, depression and sexual self-esteem increased the vulnerability for sexual assault victimization, which has implications for prevention and intervention efforts. This document is copyrighted by the American Psychological Association or one of its allied publishers. This article is intended solely for the personal use of the individual user and is not to be disseminated broadly.},
  language  = {en}
}
@misc{RohlfHollKirschetal.2018,
  author    = {Rohlf, Helena L. and Holl, Anna K. and Kirsch, Fabian and Krah{\´e}, Barbara and Elsner, Birgit},
  title     = {Longitudinal Links between Executive Function, Anger, and Aggression in Middle Childhood},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {382},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-409471},
  pages     = {14},
  year      = {2018},
  abstract  = {Previous research has indicated that executive function (EF) is negatively associated with aggressive behavior in childhood. However, there is a lack of longitudinal studies that have examined the effect of deficits in EF on aggression over time and taken into account different forms and functions of aggression at the same time. Furthermore, only few studies have analyzed the role of underlying variables that may explain the association between EF and aggression. The present study examined the prospective paths between EF and different forms (physical and relational) and functions (reactive and proactive) of aggression. The habitual experience of anger was examined as a potential underlying mechanism of the link between EF and aggression, because the tendency to get angry easily has been found to be both a consequence of deficits in EF and a predictor of aggression. The study included 1,652 children (between 6 and 11 years old at the first time point), who were followed over three time points (T1, T2, and T3) covering 3 years. At T1, a latent factor of EF comprised measures of planning, rated via teacher reports, as well as inhibition, set shifting, and working-memory updating, assessed experimentally. Habitual anger experience was assessed via parent reports at T1 and T2. The forms and functions of aggression were measured via teacher reports at all three time points. Structural equation modeling revealed that EF at T1 predicted physical, relational, and reactive aggression at T3, but was unrelated to proactive aggression at T3. Furthermore, EF at T1 was indirectly linked to physical aggression at T3, mediated through habitual anger experience at T2. The results indicate that deficits in EF influence the later occurrence of aggression in middle childhood, and the tendency to get angry easily mediates this relation.},
  language  = {en}
}
@article{RohlfHollKirschetal.2018,
  author    = {Rohlf, Helena L. and Holl, Anna K. and Kirsch, Fabian and Krah{\´e}, Barbara and Elsner, Birgit},
  title     = {Longitudinal Links between Executive Function, Anger, and Aggression in Middle Childhood},
  series = {Frontiers in Behavioral Neuroscience},
  volume    = {12},
  journal   = {Frontiers in Behavioral Neuroscience},
  number    = {27},
  publisher = {Frontiers Research Foundation},
  address   = {Lausanne},
  issn      = {1662-5153},
  doi       = {10.3389/fnbeh.2018.00027},
  pages     = {1 -- 14},
  year      = {2018},
  abstract  = {Previous research has indicated that executive function (EF) is negatively associated with aggressive behavior in childhood. However, there is a lack of longitudinal studies that have examined the effect of deficits in EF on aggression over time and taken into account different forms and functions of aggression at the same time. Furthermore, only few studies have analyzed the role of underlying variables that may explain the association between EF and aggression. The present study examined the prospective paths between EF and different forms (physical and relational) and functions (reactive and proactive) of aggression. The habitual experience of anger was examined as a potential underlying mechanism of the link between EF and aggression, because the tendency to get angry easily has been found to be both a consequence of deficits in EF and a predictor of aggression. The study included 1,652 children (between 6 and 11 years old at the first time point), who were followed over three time points (T1, T2, and T3) covering 3 years. At T1, a latent factor of EF comprised measures of planning, rated via teacher reports, as well as inhibition, set shifting, and working-memory updating, assessed experimentally. Habitual anger experience was assessed via parent reports at T1 and T2. The forms and functions of aggression were measured via teacher reports at all three time points. Structural equation modeling revealed that EF at T1 predicted physical, relational, and reactive aggression at T3, but was unrelated to proactive aggression at T3. Furthermore, EF at T1 was indirectly linked to physical aggression at T3, mediated through habitual anger experience at T2. The results indicate that deficits in EF influence the later occurrence of aggression in middle childhood, and the tendency to get angry easily mediates this relation.},
  language  = {en}
}