“…The following studies were excluded from the analyses: n ϭ 1 studies (studies based on qualitative analyses and/or insufficient statistics; Garrison, 1978); studies evaluating pharmacological treatments only (e.g., Flint & Rifat, 1997); studies with only one session of therapy (Powers & Wisocki, 1997;Rankin, Gilner, Gfeller, & Katz, 1993); studies investigating effects of anxiety treatment in nonclinical (within the normal range) populations (Scates, Randolph, Gutsch, & Knight, 1986); studies presenting treatment vignettes (Carmin & Wiegartz, 2000); and, finally, studies with insufficient statistical information to permit calculation of an effect size (Chinen, 1986;Hussian, 1981;Ingersoll & Silverman, 1978;Moffatt, Mohr, & Ames, 1995;Molinari & Williams, 1995). The following studies were excluded from the analyses: n ϭ 1 studies (studies based on qualitative analyses and/or insufficient statistics; Garrison, 1978); studies evaluating pharmacological treatments only (e.g., Flint & Rifat, 1997); studies with only one session of therapy (Powers & Wisocki, 1997;Rankin, Gilner, Gfeller, & Katz, 1993); studies investigating effects of anxiety treatment in nonclinical (within the normal range) populations (Scates, Randolph, Gutsch, & Knight, 1986); studies presenting treatment vignettes (Carmin & Wiegartz, 2000); and, finally, studies with insufficient statistical information to permit calculation of an effect size (Chinen, 1986;Hussian, 1981;Ingersoll & Silverman, 1978;Moffatt, Mohr, & Ames, 1995;Molinari & Williams, 1995).…”