Mean (SD) for subject demographics, self-rated attitudes and the scales of the readiness to change questionnaire and the decisional balance questionnaire (attitude scales).

Remarks. t = t-value for the comparison of consonant and dissonant smokers. p = p value for the comparison of consonant and dissonant smokers. FTND = Fagerström test of nicotine dependence, QSU = Questionnaire on smoking urges, CO = CO value prior to the experiment, CON/DIS value = self characterization on a 9-point-likert-scale, satisfaction = response to the question ‘how satisfied are you with yourself being a smoker?’ from the smoking history questionnaire, number of quit attempts = response to the question ‘How often have you tried to quit smoking?’ from the smoking history questionnaire, * = scales of the decisional balance questionnaire (advantages = perceived advantages of smoking, disadvantages = perceived disadvantages of smoking), † = scales of the readiness to change questionnaire (precontemplation = tendency of not thinking about quitting, contemplation = tendency of thinking about quitting, action = tendency of actually trying to quit).