What was the theoretical basis for the study? Reference: Boniwell, I., Osin, E. N., & Martinez, C. (2015). Teaching happiness at school: Non-randomised controlled mixed-metho
What was the theoretical basis for the study? Reference: Boniwell, I., Osin, E. N., & Martinez, C. (2015). Teaching happiness at school: Non-randomised controlled mixed-methods feasibility study on the effectiveness of personal well-being lessons. The Journal of Positive Psychology, 11(1), 85-98. https://doi.org/10.1080/17439760.2015.1025422