Okan , M. ., Lu , C.-X. ., Ros-García , L. ., & Hernandez , W. A. . (2026). Stacked Generalization Model for Predicting Happiness: Positive Affect, Gratitude, Social Connectedness, and Psychological Flexibility. Journal of Assessment and Research in Applied Counseling (JARAC), 1-10. https://journals.kmanpub.com/index.php/jarac/article/view/207