“…Five of these provided written manuals to a control group (Henggeler et al, 2013;Larson et al, 2013;Rawson et al, 2013;Sholomskas & Carroll, 2006;Sholomskas et al, 2005), two of the RCTs studied post-training support and offered no resources to the control group (Carpenter et al, 2012Smith et al 2012, and one study used a delayed training group as a control (Weingardt, Villafranca, & Levin, 2005). Of those studies that were not RCTs, one was a randomised trial comparing face-to-face and online training (Clancy & Taylor, 2016); two were randomised trials comparing different online training formats (Leykin, Cucciare, & Weingardt, 2011;Weingardt, Cucciare, Bellotti, & Lai, 2009); two were prototype, pilot or feasibility studies (Larson et al, 2009;Matejkowski, Dugosh, Clements, & Festinger, 2015); one was a crosssectional survey of substance misuse staff (Aletraris, Shelton, & Roman, 2015); one was a longitudinal study of online learning (Shafer, Rhode, & Chong, 2004), and one was a qualitative study reporting participant experiences of online learning (Curran et al, 2015).…”