kyberšikanovanie cyberbullying 11 [vynechat] šikanovanie 9 [vynechat] bullying 8 [vynechat] adolescenti 3 [vynechat] adolescents 3 [vynechat] prevention (social problems) 3 [vynechat] attention deficit hyperactivity disorder 2 [vynechat] behavioral disorders 2 [vynechat] children and youth 2 [vynechat] deti a mládež 2 [vynechat] education 2 [vynechat] generations 2 [vynechat] generácie 2 [vynechat] porucha pozornosti spojená s hyperaktivitou 2 [vynechat] poruchy správania 2 [vynechat] prevencia (sociálne problémy) 2 [vynechat] sociálna pedagogika 2 [vynechat] sociálna prevencia 2 [vynechat] COVID-19 1 [vynechat] COVID-19 (Disease) 1 [vynechat] Cyberbullying 1 [vynechat] Cyberbullying prevention 1 [vynechat] Elementary schools 1 [vynechat] Media education 1 [vynechat] Risk behavior 1 [vynechat] Secondary schools 1 [vynechat] The Internet 1 [vynechat] aggressiveness 1 [vynechat] aggressiveness in children 1 [vynechat]