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Internet‐based contingency management to promote smoking cessation: A randomized controlled study
Author(s) -
Dallery Jesse,
Raiff Bethany R.,
Grabinski Michael J.
Publication year - 2013
Publication title -
journal of applied behavior analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 76
eISSN - 1938-3703
pISSN - 0021-8855
DOI - 10.1002/jaba.89
Subject(s) - contingency management , abstinence , smoking cessation , intervention (counseling) , psychology , randomized controlled trial , clinical psychology , contingency , attendance , psychiatry , medicine , linguistics , philosophy , pathology , economic growth , economics
We evaluated an Internet‐based contingency management intervention to promote smoking cessation. Participants in the contingent group ( n = 39) earned vouchers contingent on video confirmation of breath carbon monoxide (CO) ≤ 4 parts per million (ppm). Earnings for participants in the noncontingent group ( n = 38) were independent of CO levels. Goals and feedback about smoking status were provided on participants' homepages. The median percentages of negative samples during the intervention in the noncontingent and contingent groups were 25% and 66.7%, respectively. There were no significant differences in absolute CO levels or abstinence at 3‐ and 6‐month follow‐ups. Compared to baseline, however, participants in both groups reduced CO by an estimated 15.6 ppm during the intervention phases. The results suggest that the contingency for negative COs promoted higher rates of abstinence during treatment, and that other elements of the system, such as feedback, frequent monitoring, and goals, reduced smoking.