The Effectiveness of a Positive Psychology App in the General Population

The corona crisis has a negative impact on the mental wellbeing of the Dutch population. Positive psychology exercises (PPOs) can potentially improve mental well-being and reduce mild and moderate psychological complaints. Previous research has shown moderate to large effects of PPOs on well-being in people with reduced wellbeing and psychological symptoms at baseline. The University of Twente developed an app (Training in Positivity; TiP) based on an effective intervention. The goal of this study is to investigate the effectiveness of TiP in the general population in people experiencing reduced mental wellbeing as a result of the corona crisis. People using the app will be compared to a waiting list control group.