Voorlichting op maat over stoppen met roken: Een veld-experiment

Studied the relative effects of different types of messages and information on the motivation to stop smoking. Human Ss: 1,540 normal male and female Dutch adults (smokers). Ss representing 4 motivational groups—unmotivated, anticipatory contemplators, contemplators, and preparers—were recruited with newspaper advertisements in a randomized field study. All Ss were exposed to outcome information, self-efficacy enhancing information, both kinds of information, or no information. Ss in the 3 experimental groups received (1) computer-generated personalized feedback by mail 2 wks after a pretest and (2) posttest questionnaires 3 mo after the intervention. Four outcome measures were assessed: intention to stop smoking, stage transition, and refraining from smoking for 24 hrs or more than 7 days. (English abstract) (PsycINFO Database Record (c) 2016 APA, all rights reserved)