Spirituality, Happiness, and Psychological Well-being in 13- to 15-year olds: A Cross-country Longitudinal RCT Study.

Based on a study of 5339 adolescents from 60 schools across 15 countries, this paper reports on the effect of spirituality on their happiness and psychological well-being. A customized spiritual program was administered and post-treatment outcome variable scores of the experimental group were higher. Adolescents from relatively affluent nations, boys, Christians, and those who self-practiced scored higher post-test. This makes a case for nominating spirituality as an important developmental variable for 13- to 15-year olds.