All participants in the study have contributed to our ability to evaluate the impact of NettOpp on various health outcomes. We extend our gratitude to all the schools that participated in the study, with a special thanks to all the students who took part.

Project period: 01.09.2020 - 15.12.2030.

Ethical approval: Approved by the regional Research Ethics Committee (161212) and by the Norwegian Center for Research Data (545417). 

Trial registration: ClinicalTrials.gov NCT04176666

Protocol article: Kaiser, S., Martinussen, M., Adolfsen, F., Breivik, K., & Kyrrestad, H. (2021). An App-Based Intervention for Adolescents Exposed to Cyberbullying in Norway: Protocol for a Randomized Controlled Trial. JMIR Research Protocols. Doi: 10.2196/31789

User evaluation: Høgsdal, H., Kaiser, S., & Kyrrestad, H. (2023). Adolescents’ assessment of two mental health–promoting mobile apps: results of two user surveys. JMIR Formative Research. Doi: 10.2196/40773