Objective: to test the efficacy of a new school program for the promotion of psychological well-being. In this study a school program for promoting psychological well-being has been compared to an attention-placebo intervention in a high school setting.
Methods: Nine classes (227 students) were randomly assigned to: a) Well-Being intervention (5 classes); b)attention-placebo (4 classes). Assessment was performed at pre and post-intervention, and after six months using: 1) Symptom Questionnaire (SQ); 2) Psychological Well-Being Scales (PWB); 3) Revised Children's Manifest Anxiety Scale (RCMAS).
Results: A significant effect of WB school intervention in improving Personal Growth (PWB), and in decreasing distress (Somatization (SQ), Physical Well-being (SQ), Anxiety (SQ), and RCMAS Physiological Anxiety) emerged.
Conclusions: A school intervention based on promoting positive emotions and well-being was effective not only in increasing psychological well-being among adolescents, but also in decreasing distress, in particular anxiety and somatization.