Okan , M. (2026) “Stacked Generalization Model for Predicting Happiness: Positive Affect, Gratitude, Social Connectedness, and Psychological Flexibility”, Journal of Assessment and Research in Applied Counseling (JARAC), pp. 1–10. Available at: https://journals.kmanpub.com/index.php/jarac/article/view/207 (Accessed: 29 April 2026).