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. Author manuscript; available in PMC: 2011 Dec 1.
Published in final edited form as: Biol Psychiatry. 2010 Dec 1;68(11):1073–1076. doi: 10.1016/j.biopsych.2010.07.015

Table 2.

Means, Standard Deviations, and Effect-sizes for Outcome Measures for CBT+DCS and CBT+Placebo Treatment Groups

D-Cycloserine Group
(N=15)
Placebo Group
(N=15)
Effect Sizes

Measure Mean SD Mean SD Cohen’s d
CY-BOCS Total Severity
    Pretreatment 24.1 4.4 26.0 3.8 0.46
    Mid-treatment 15.6 6.8 17.9 4.5 0.40
    Post-treatment 6.8 6.0 11.0 6.6 0.67
CGI-Severity
    Pretreatment 4.6 0.83 5.1 0.74 0.63
    Mid-treatment 3.5 0.92 3.9 0.59 0.52
    Post-treatment 2.0 1.0 3.0 1.2 0.91
ADIS-CSR
    Pretreatment 5.1 0.79 5.3 0.70 0.27
    Post-treatment 1.5 1.5 2.5 1.8 0.61
MASC
    Pretreatment 41.7 15.4 39.9 13.7 0.12
    Post-treatment 31.4 19.7 34.6 14.7 0.19
CDI-Short Form
    Pretreatment 2.6 3.3 3.4 2.8 0.27
    Post-treatment 1.4 2.5 2.2 2.1 0.36

SD=Standard Deviation

Between-group Effect Size at each time point using the pooled standard deviation