Victoir, An, Audrey Eertmans, and Omer Van den Bergh (2007), "Association of substance-use behaviours and their social-cognitive determinants in secondary school students", Health Education Research, 22, 81-94.
- Ease/ difficulty of refusing to smoke.
How easy is it to refuse a cigarette from a friend?
How easy is it to say you’re fine without cigarettes when you are at a party?
How easy is it to refuse a friend a smoke when you’re in your room?
- Trafimow , D., P. Sheeran , and M. Conner (2002), "Evidence that perceived behavioural control is a multidimensional construct: perceived control and perceived difficulty", British Journal of Social Psychology, 41, 101-121. [Endnote]
- Madden, T.J, P.S Ellen, and I Ajzen (1992), "A comparison of the theory of planned behavior and the theory of reasoned action", Personality and social Psychology Bulletin, 18, 3-9. [Endnote]
- Ajzen, Icek (1991), "The Theory of Planned Behavior", Organizational Behavior and Human Decision Processes, 50, 179-211. [Endnote]