This study extends the Theory of Planned Behaviour (TPB) by integrating environmental values, environmental knowledge, and green mindfulness to examine predictors of pro-environmental behavioural intentions among Indonesian university students.
A cross-sectional survey was conducted with 681 undergraduate students, and data were analysed using partial least squares structural equation modelling (PLS-SEM). The model incorporated motivational, cognitive, and reflective antecedents within an extended TPB framework.
Biospheric values significantly predicted attitudes and intentions, whereas altruistic values showed only indirect effects and egoistic values were not significant. Environmental knowledge positively influenced attitudes, mindfulness, and intentions. Green mindfulness had a significant but modest effect. Among TPB variables, attitude, injunctive norms, and perceived behavioural control were significant predictors, while descriptive norms were not.
Higher education should prioritise value-based and knowledge-integrated approaches, strengthen injunctive norms, and enhance perceived behavioural control through supportive infrastructure. Green mindfulness can complement these strategies.
This study provides an extended TPB model integrating values, cognition, and mindfulness, offering a contextually grounded framework for sustainability education in the Global South.
