title: Internet-based group contingency management to promote smoking abstinence.
abstract: Internet-based group contingencies have been shown to promote brief periods of abstinence from cigarette smoking. Under a group contingency, small teams of smokers must collectively meet abstinence goals to receive monetary consequences. The present study investigated 2 arrangements, 1 in which all team members had to meet group treatment goals to receive monetary consequences (full group), and 1 in which team members had to meet some group goals and some individual goals to receive these consequences (mixed group). Mo̅tiv8 Systems, an Internet-based remote monitoring platform, was used to collect video-recorded breath carbon monoxide (CO) samples. All team members could communicate with each other via an online discussion forum. During baseline conditions, only 3.3% of CO samples were negative for smoking, which suggests that self-monitoring and access to the online discussion forum were insufficient to initiate abstinence. When the group contingencies were instituted 41.3% of CO samples were negative. There were no statistically significant differences between the 2 arrangements in the percentage of negative CO samples or point prevalence at the end of treatment or at the 3-month follow-up. Participants posted an average of 25 comments on the discussion forum, most of which were rated as positive by independent observers. The mean cost of vouchers per participant was lower in the full group ($33) relative to the mixed group ($190). The present results replicate and extend previous findings on group contingencies to promote abstinence and social support.
authors.affiliation: Department of Psychology, University of Florida.
authors.forename: Jesse
authors.initials: J
authors.lastname: Dallery
authors.affiliation: Department of Psychology, University of Florida.
authors.forename: Steven
authors.initials: S
authors.lastname: Meredith
authors.affiliation: Department of Psychology, University of Florida.
authors.forename: Brantley
authors.initials: B
authors.lastname: Jarvis
authors.affiliation: Department of Psychiatry, University of Kentucky.
authors.forename: Paul A
authors.initials: PA
authors.lastname: Nuzzo
mesh_terms: D000293:Adolescent; D000328:Adult; D001521:Behavior Therapy / Q000379:methods*; D016009:Chi-Square Distribution; D005260:Female; D006801:Humans; D020407:Internet; D008297:Male; D008875:Middle Aged; D012907:Smoking / Q000523:psychology* / Q000628:therapy*; D016540:Smoking Cessation / Q000379:methods*; D011795:Surveys and Questionnaires; D013997:Time Factors; D055815:Young Adult
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