Objective: Cyberbullying, which is defined as an intentional, aggressive, and repetitive behaviour where a person or group uses electronic devices (primarily the Internet and smartphones), is a new concept specifically for the Iranian educational system. We examined the Bullying and Cyberbullying Scale for Adolescents' (BCS-A) psychometric…

This correlational study investigates the relationship between mobile phone use among elementary school students in Iran during the COVID-19 epidemic, and its effect on emotional-behavioural functioning and academic and social competencies. A researcher-devised questionnaire, and the Achenbach Child Behaviour Checklist (CBCL)-parental version, was…