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The Barlett Gentile cyberbullying model (BGCM) posits that correlated anonymity perceptions and the belief in the irrelevance of muscularity for online bullying (BIMOB) predict positive cyberbullying attitudes to predict subsequent cyberbullying perpetration. Much research has shown the BGCM to be the only published theory that differentiates traditional and cyberbullying while validly predicting cyberbullying. So far, however, the cross‐cultural ubiquity has gone understudied. Thus, 1,592 adult participants across seven countries (USA, Australia, Brazil, China, Germany, Japan, and Singapore) completed measures germane to the BGCM. Supporting the BGCM, the variables were significantly correlated for the entire sample, participants from independent cultures, and participants from interdependent cultures. However, the relationship between BIMOB and positive cyberbullying attitudes as well as the relationship between positive cyberbullying attitudes and cyberbullying perpetration were stronger for independent cultures. These results suggest that the BGCM postulates are mostly universal, but several relations appear to be culturally different. Theoretical implications are discussed.

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Abstract. The bystander effect reveals that people are less likely to help a person in need when others are present. We examined the impact of priming the concept of responsibility on the bystander effect in a field study. Lone pedestrians ( N = 259) were randomly assigned to a two (Bystanders: none and three nonresponsive bystanders) by two (Shirt: blank shirt and shirt with “Be Responsible” written on the front) design. A researcher dropped eight pens approximately 15 ft from a lone pedestrian, while wearing one of the two shirts in the presence/absence of bystanders (confederates). The bystander effect was found: Pedestrians helped pick up pens more frequently in the no bystanders condition (59.05% helped) compared to the nonresponsive bystanders condition (41.67% helped). The responsibility prime tended to boost helping rates, but it did not significantly increase helping rates either as a main effect or as part of an interaction term. The bystander effect was replicated in a field setting, but priming the concept of responsibility did not appear to reduce it.

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