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The lead article in the Feb/March issue of the American Psychologist by McHugh and Barlow (2010) emphasizes the need for "dissemination and implementation of evidence-based psychological treatments. " The authors identify a number of intervention programs as evidence-based and in need of dissemination. One is Multi-systemic Therapy (MST). They claim that this program is among "the most successful dissemination efforts…pursued by treatment developers " (p.79). One randomized-controlled trial (RCTs) is cited in support of the effectiveness of MST (Henggeler, Melton, Brondino, Scherer, & Hanley, 1997). The remaining citations are to non-experimental or weak quasi-experimental studies and non-systematic reviews, including a 1998 review by Kazdin and Weisz. The systematic review of RCTs on the effects of MST by Littell, Popa, and Forsythe (2005) is not mentioned. This review in the Cochrane Library and the Campbell Library of systematic reviews reported that MST is no more effective than are other treatments. This review found a number of concerning lapses in methodology and data analysis in related RCTs, including failure in all but a few studies to conduct an intention-to-treat analysis. An analysis of previously published reviews of MST trial