Exploring the Relationship Between Academic Stress and Academic Engagement in Chemistry Laboratory Learning: The Mediating Role of Learning Burnout and the Differentiated Roles of Stress Sources

Academic stress is widely related to student engagement, yet its multidimensional nature and underlying processes remain insufficiently examined in laboratory learning contexts. This study explored the relationship between different sources of academic stress and academic engagement in chemistry laboratory courses, with learning burnout as a potential mediator. A cross-sectional survey was conducted among 1647 undergraduate school students. Academic stress was conceptualized as three dimensions: students’ academic self-perceptions (SP), faculty work and examinations (WE), and academic expectations (AExp). The results showed that these stress dimensions were differentially related to academic engagement. In addition, learning burnout was found to be associated with the relationship between academic stress and engagement, suggesting a mediating role. Notably, workload-related stress was more strongly related to engagement, whereas expectation-related stress showed a stronger association with burnout. These findings suggest that academic stress is not a unitary construct and that different stress sources may be associated with engagement through distinct patterns. The results provide a basis for understanding how stress operates in laboratory learning contexts and offer implications for both research and instructional practice.