Cyber-Victimization and Mental Health Concerns among Middle School Students Before and During the COVID-19 Pandemic.

The COVID-19 pandemic had significant impacts on adolescents' mental health and social interactions; however, little is known about cyber-victimization and mental health concerns from before to during the pandemic. The current study addressed this gap, while also examining how social media use and disagreements with friends during the pandemic were associated with cyber-victimization and mental health outcomes. Participants included 272 youth in the U.