Stoops, W.W., Dallery, J., Fields, N.M., Nuzzo, P.A., Schoenberg, N.E., Martin, C.A., Casey, B., Wong, C.J. (2009). Drug and Alcohol Dependence. 105: 56-62.
Participants assigned to the Abstinence Contingency (AC) group were more likely to provide a negative sample and to achieve continuous abstinence, compared to the Yoked Control group. Results of this study show the feasibility and short-term efficacy of delivering reinforcement for smoking abstinence to rural populations over the Internet.