“…A recent meta-analysis concluded that CBT and interpersonal therapy are probably efficacious when compared to no treatment, but the authors qualified their findings by noting that it was likely that the effect seen in their analysis was restricted to children 12 -18 years of age (Watanabe et al, 2007). Furthermore, in most published studies the children have not been diagnosed (Asarnow, Scott, & Mintz, 2002;Butler et al, 1980;de Cuyper, Timbremont, Braet, De Backer, & Wullaert, 2004;Liddle & Spence, 1990;Stark et al, 1987;Weisz, Thurber, Sweeney, Proffitt, & LeGagnoux, 1997) and in a number of studies prevention samples have been included (e.g., Gillham, Reivich, Jaycox, & Seligman, 1995;Jaycox, Reivich, Gillham, & Seligman, 1994). Including prevention samples, however, may hamper the generalizations to be made, as they seem to have greater gains from treatment as compared to clinical samples (Klein, Jacobs, & Reinecke, 2007).…”