Bullying, social support and adolescents' mental health: Results from a follow-up study.

The aim of this study was to examine the predictive roles of being bullied and perceived social support in association with adolescents' mental health. At two time points, September 2016 and April-June 2017, questionnaires were distributed to students between 15 and 21 years of age in four upper-secondary schools in Norway, with a total sample size of 351. Random- and fixed-effects regression models were used to estimate the effects of being bullied and social support on adolescents' mental health. In the random-effects models, being bullied was associated with lower scores on mental well-being and higher scores on anxiety and depression symptoms. Social support from family and friends was associated with higher scores on mental well-being, as well as fewer anxiety and depression symptoms. However, the results from the fixed-effects model, with more realistic assumptions, indicated that being bullied was only associated with more anxiety and depression symptoms, while support from friends was associated with higher scores on mental well-being and fewer anxiety and depression symptoms.