significant at the 6-month follow-up point. Again, it was not possible to disentangle the effects of MET/CM versus the contingency component in understanding what drove reductions in cannabis use. Interventions combining MI and CBT, without a contingency management component, have also shown promise among individuals with comorbid depression and alcohol or cannabis use disorders relative to brief intervention alone, including the SHADE program developed and tested in Australia (Kay-Lambkin, Baker, Lewin, & Carr, 2009; Kay-Lambkin, Simpson, Bowman, & Childs, 2014).
