Okan , Merve, Cheng-Xiong Lu, Laura Ros-García, and Wilmer Antonio Hernandez. “Stacked Generalization Model for Predicting Happiness: Positive Affect, Gratitude, Social Connectedness, and Psychological Flexibility”. Journal of Assessment and Research in Applied Counseling (JARAC) 8, no. 3 (July 1, 2026): 1–10. Accessed July 24, 2026. https://www.journals.kmanpub.com/index.php/jarac/article/view/207.