“…Residential therapeutic communities (TCs) for the treatment of drug addiction were developed in the mid-20th century and are well established in the United Kingdom, Western Europe, and the United States (Glaser, 1981). Each TC differs in its treatment goals and how it operates (Glaser, 1981; see also Adamson, Deering, Hinerangi, Huriwai, & Noller, 2010; Chen, Elisha, Timor, & Ronel, 2013; Munro, Allan, Shakeshaft, & Breen, 2017; New Zealand Department of Corrections, 2009; Smiley-McDonald & Leukfeld, 2005). Some TCs have a short duration of treatment (e.g., three months) and others are longer in duration (e.g., 3 years; Gowing, Cooke, Biven, & Watts, 2002).…”