Analysis of incidents over the past ten years in Germany reveals that the boundaries between targeted attacks in schools and terrorist attacks are starting to blur. Bockler, Leuschner, Roth, Zick, and Scheithauer (2018) recently presented a set of hypotheses about similarities between the developmental pathways of school attackers and lone actor…

A considerable body of research has examined the association between self-presentation on social networking sites and personality in adults. Yet, there is a lack of corresponding research on adolescents as well as studies on alternative measures of personality traits of the self. The current study investigates, using a cross-sectional multi-method…