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. Author manuscript; available in PMC: 2013 Jun 1.
Published in final edited form as: J Consult Clin Psychol. 2012 Jan 16;80(3):497–511. doi: 10.1037/a0026928

Table 3.

Effect sizes for the treatment outcome variables for treatment completers.

Variable Effect size
Within-group a
 Between-group b
IMP ICC
Social Interpretation Bias
 Threat Endorsement 1.91 0.79 0.92
 Benign Endorsement 1.76 0.35 1.30
General (Non-social) Interpretation Bias
 Threat Endorsement 1.97 0.59 1.29
 Benign Endorsement 1.39 0.17 1.22
Social Anxiety
 LSAS 1.95 0.61 1.05
 SPAI 1.23 1.29 0.17
Functional Impairment
 SDS 1.52 0.99 0.80
Emotional Distress
 BDI-II 1.62 0.48 0.83
 STAI-T 1.35 0.72 0.66

Note. IMP: Interpretation Modification Program; ICC: Interpretation Control Condition; LSAS: Liebowitz Social Anxiety Scale; SPAI: Social Phobia and Anxiety Inventory; SDS: The Sheehan Disability Scale; BDI-II: The Beck Depression Inventory II; STAI-T: The State Trait Anxiety Inventory – Trait.

a

Within group pre- to post-treatment effect sizes = [(pre-treatment mean – post-treatment mean)/pre-treatment standard deviation)].

b

Between-group controlled effect sizes = [(post-assessment ICC covariance adjusted mean – post-assessment IMP covariance adjusted mean)]/pooled standard deviation.