The effects of an app to prevent negative outcomes of cyberbullying: A cluster randomized controlled trial.

Experiencing cyberbullying and negative incidents online can negatively affect adolescents' mental health and well-being. NettOpp is a mobile application aiming to reduce the harmful effects of cyberbullying and negative incidents online on mental health outcomes. To evaluate the effect of the...

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Main Authors: Helene Høgsdal, Sabine Kaiser, Geraldine Mabille, Kyrre Breivik, Frode Adolfsen, Monica Martinussen, Henriette Kyrrestad
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2025-04-01
Series:PLOS Digital Health
Online Access:https://doi.org/10.1371/journal.pdig.0000819
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author Helene Høgsdal
Sabine Kaiser
Geraldine Mabille
Kyrre Breivik
Frode Adolfsen
Monica Martinussen
Henriette Kyrrestad
author_facet Helene Høgsdal
Sabine Kaiser
Geraldine Mabille
Kyrre Breivik
Frode Adolfsen
Monica Martinussen
Henriette Kyrrestad
author_sort Helene Høgsdal
collection DOAJ
description Experiencing cyberbullying and negative incidents online can negatively affect adolescents' mental health and well-being. NettOpp is a mobile application aiming to reduce the harmful effects of cyberbullying and negative incidents online on mental health outcomes. To evaluate the effect of the mobile app, a cluster randomized controlled trial design with three measurement points was conducted. Thirty-two Norwegian primary and secondary schools were randomly assigned to either an intervention group where the pupils (n = 259) got access to NettOpp during the study period, or to a waiting-list control group where the pupils (n = 327) got access to NettOpp after the study period. No significant findings were found in the intention-to-treat analyses, but the results from per-protocol analyses showed a decrease in hyperactivity problems among the adolescents that had used the app (F(4,1585) = 2.89, p =.021). Users of the app reported being more exposed to negative incidents online during the study period (F(2,1591) = 3.94, p =.020). The frequency of cyberbullying decreased during the study period, but among all study participants, including those who had not used the app. The findings provide valuable insight into whether mobile apps can function as preventive and supportive self-help resources in reducing the harmful effects of cyberbullying and negative online incidents on mental health outcomes among adolescents.
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spelling doaj-art-3fd7e4bf0eb844778defd685952c16c92025-08-20T02:19:22ZengPublic Library of Science (PLoS)PLOS Digital Health2767-31702025-04-0144e000081910.1371/journal.pdig.0000819The effects of an app to prevent negative outcomes of cyberbullying: A cluster randomized controlled trial.Helene HøgsdalSabine KaiserGeraldine MabilleKyrre BreivikFrode AdolfsenMonica MartinussenHenriette KyrrestadExperiencing cyberbullying and negative incidents online can negatively affect adolescents' mental health and well-being. NettOpp is a mobile application aiming to reduce the harmful effects of cyberbullying and negative incidents online on mental health outcomes. To evaluate the effect of the mobile app, a cluster randomized controlled trial design with three measurement points was conducted. Thirty-two Norwegian primary and secondary schools were randomly assigned to either an intervention group where the pupils (n = 259) got access to NettOpp during the study period, or to a waiting-list control group where the pupils (n = 327) got access to NettOpp after the study period. No significant findings were found in the intention-to-treat analyses, but the results from per-protocol analyses showed a decrease in hyperactivity problems among the adolescents that had used the app (F(4,1585) = 2.89, p =.021). Users of the app reported being more exposed to negative incidents online during the study period (F(2,1591) = 3.94, p =.020). The frequency of cyberbullying decreased during the study period, but among all study participants, including those who had not used the app. The findings provide valuable insight into whether mobile apps can function as preventive and supportive self-help resources in reducing the harmful effects of cyberbullying and negative online incidents on mental health outcomes among adolescents.https://doi.org/10.1371/journal.pdig.0000819
spellingShingle Helene Høgsdal
Sabine Kaiser
Geraldine Mabille
Kyrre Breivik
Frode Adolfsen
Monica Martinussen
Henriette Kyrrestad
The effects of an app to prevent negative outcomes of cyberbullying: A cluster randomized controlled trial.
PLOS Digital Health
title The effects of an app to prevent negative outcomes of cyberbullying: A cluster randomized controlled trial.
title_full The effects of an app to prevent negative outcomes of cyberbullying: A cluster randomized controlled trial.
title_fullStr The effects of an app to prevent negative outcomes of cyberbullying: A cluster randomized controlled trial.
title_full_unstemmed The effects of an app to prevent negative outcomes of cyberbullying: A cluster randomized controlled trial.
title_short The effects of an app to prevent negative outcomes of cyberbullying: A cluster randomized controlled trial.
title_sort effects of an app to prevent negative outcomes of cyberbullying a cluster randomized controlled trial
url https://doi.org/10.1371/journal.pdig.0000819
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