Can a Positive Activity Intervention Based on a Mobile Application Improve Well-Being?

Background: Positive psychology emphasizes the importance of mental well-being. This study evaluated the effectiveness of a mobile application-based positive psychology intervention (PPI) in improving the well-being of university students in Hamadan, Iran. Methods: Using a multistage, cluster-randomized approach, this experimental study was conducted on ۲۵۱ students from two universities in Hamadan, west of Iran, in ۲۰۲۱. The intervention consisted of fourteen educational courses delivered via a mobile app. Flourishing, depressive symptoms, and fear of COVID-۱۹ were measured three months post-intervention. The obtained data were analyzed using SPSS-۲۳ with chi-squared tests, independent samples t-tests, and IBM AMOS-۲۶ software (P<۰.۰۵). Results: At the initial assessment, there were no notable discrepancies between the educational and comparison groups in flourishing, positive affect, hope, need satisfaction, and person-activity fit. However, three months after the intervention, the academic group demonstrated significant improvements in the aforementioned variables, except for depressive symptoms and fear of COVID-۱۹, which decreased significantly. Thus, ۳۴% of the variance of flourishing, a ۰.۰۵% decrease in depression, and ۲۸% fear of COVID-۱۹ can be explained based on the PPI. In other words, PPI had more effects on flourishing, fear of COVID-۱۹, and depressive symptoms, respectively. Conclusion: The mobile app-based PPI could noticeably improve well-being indicators in the experimental group. Given the importance of enhancing happiness and well-being while reducing depression among the students, these findings underscore the need for serious actions, updated educational plans focused on well-being, and strategies to decrease health anxiety.