Basic Psychological Needs and Psychological Well-Being Among Undergraduate Students in China: The Mediating Role of Autonomous Motivation and Academic Engagement.

Purpose: From the perspective of positive psychology, and based on Self-Determination Theory and Sustainable Happiness Theory, this study explores the relationship between basic psychological needs and psychological well-being among undergraduate students, as well as the mediating roles of autonomous motivation and academic engagement.

Methods: A survey was conducted among 439 undergraduate students using the Basic Psychological Needs Scale, Learning Motivation Scale, Academic Engagement Scale, and Psychological Well-being Scale.

Results: Basic psychological needs were significantly and positively correlated with undergraduate students' psychological well-being.