Survival analysis would be used to assess effects on retention. Analyses that involved time effects would employ mixed linear model analytic techniques that allow for missing data. These techniques can also examine the effects of interventions on patient subgroups including those enrolled in different treatment modalities and those exhibiting different baseline profiles of drug use. These studies could be conducted using existing clinic resources that are supplemented by research dollars for support of incentives. If higher cost incentives for abstinence are effective, study data may provide the basis for attracting additional treatment funding.
Incentives improve outcome in outpatient behavioral treatment of cocaine dependence.
Contingent reinforcement of group participation versus abstinence in a methadone maintenance program. Contingent methadone take-home doses reinforce adjunct therapy attendance of methadone maintenance patients.