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Table 2 Pre and Post Treatment NIMH-TSS Scores, NIMH-TSS Effect Sizes and Percentage Improved or Very Improved on the CGI-I

From: Behavior therapy for pediatric trichotillomania: Exploring the effects of age on treatment outcome

  Pre-Treatment NIMH-TSS Scores (M) Post-Treatment NIMH-TSS Scores (M) NIMH-TSS Within-Subjects Effects Size (Cohen's d) Percentage Improved or Very Much Improved on the CGI
Children ≤ 9 (N = 3) 11.2 (SD = 2.3) 0.7 (SD = 1.9) 2.68 100%
Children > 9 (N = 9) 12.7 (SD = 3.0) 4.4 (SD = 1.4) 1.19 67%