1. Aiken, L. S., & West, S. G. (1991). Multiple regression: Testing and interpreting interactions. Newbury Park, CA: SAGE.
2. Bandura, A. (1977). Self-efficacy: Toward a unifying theory of behavioural change. Psychological Review, 84, 191–215.
3. Burker, E. J., Evon, D. M., Galanko, J., & Egan, T. (2005). Health locus of control predicts survival after lung transplant. Journal of Health Psychology, 10, 695–704.
4. Cohen, J., & Cohen, P. (1983). Applied multiple regression correlation analysis for the behavioral sciences (2nd ed.). Hillsdale, NJ: Erlbaum.
5. Conner, M., & Norman, P. (2009). Predicting health behaviour. Berkshire: Open University Press.