“…Psychosocial interventions are first line treatment for stimulant use disorders, with pharmacological interventions being largely ineffective ( Chan et al, 2019 ; De Crescenzo et al, 2018 ). There is strong evidence that CM is an effective intervention for stimulant use disorders ( Carrico et al, 2018 ; De Crescenzo et al, 2018 ; Higgins, Wong, Badger, Ogden, & Dantona, 2000 ; McDonell et al, 2013 ; McPherson et al, 2018 ; Petry, Alessi, Olmstead, Rash, & Zajac, 2017 ; Rawson et al, 2006 ; Shoptaw et al, 2005 ; Shoptaw, Landovitz, & Reback, 2017 ; Vocci & Montoya, 2009 ).…”