Abstract
One aim of this study was to investigate differences in cyberbullying involvement (i.e., victimization, bystanding, perpetration) across four age groups, including 234 elementary school students (4th and 5th grades; 51% female), 363 middle school students (6th through 8th grades; 53% female), 341 high school students (9th through 12th grade; 51% female), and 371 university students (all four years; 60% female). Another aim was to examine the age group differences in the associations between cyberbullying involvement and depression, as well as the moderating effect of social support from parents and friends. Participants completed questionnaires on cyberbullying involvement, depression, and social support from parents and friends. Findings revealed that middle school students were more often involved in cyberbullying as victims, bystanders, and perpetrators, followed by high school and university students, and elementary school students. High school and university students did not differ on their cyberbullying involvement. Gender moderated these relationships for elementary school students, with boys more often involved in cyberbullying perpetration and victimization than girls. In addition, female university students witnessed cyberbullying more so than males. Social support from parents buffered against the negative effects of cyberbullying involvement on depression across all age groups. Results were similar for social support from friends, but only for middle school and high school students. Gender did not influence the associations among age groups, cyberbullying involvement, and depression. The results have implications for designing prevention and intervention programs and ensuring that such programs consider age.