Cyberbullying is a form of antisocial online behaviors. Perpetration of intentional and repeated harm inflicted through electronic devices is associated with dark personality traits and may be caused by morally impaired reasoning. In the current study, we investigated the associations between the Dark Tetrad (narcissism, Machiavellianism, psychopathy, sadism), cybervictimization, and cyberbullying. We also examined the intervening role of moral disengagement in the relationship between the Dark Tetrad and cyberbullying. Two hundred fifty-one adults (72.6% women) participated in an on-line study. Correlational analysis indicated that all dark personality traits were associated with higher cyberbullying and cybervictimization (except narcissism as a predictor of cybervictimization). Moral disengagement was positively related to Machiavellianism, sadism and cybervictimization. Controlled for covariance between the Dark Tetrad traits and cybervictimization, sadism and cybervictimization appeared to be associated with cyberbullying. Moreover, moral disengagement did not account for the associations between the Dark Tetrad and cyberbullying.

This study validated Polish versions of the Coronavirus Stress Measure (CSM) and the COVID-19 Burnout Scale (COVID-19-BS) to measure stress and burnout associated with COVID-19. Participants were 431 Polish young adults (72.6% female; Mean_age = 26.61 ± 12.63). Confirmatory factor analysis verified a one-factor solution for both the CSM and the COVID-19-BS. Both scales had high internal consistency reliability. Coronavirus stress and COVID-19 burnout were positively related to depression, anxiety, and stress and negatively related to resilience. The coronavirus stress and COVID-19 burnout were correlated with elevated levels of depression, anxiety, and stress over and beyond resilience, age, and gender. Findings suggest that the Polish versions of the CSM and the COVID-19-BS are valid scales to measure stress and burnout related to COVID-19. Findings also demonstrated that the coronavirus stress and COVID-19 burnout experienced during the later stages of the pandemic might be a permanent risk factor for mental health problems.