Social Anxiety Disorder is highly prevalent among children and leads to poor long-term outcomes if left untreated. Theoretical models of anxiety differ in whether children with Social Anxiety Disorder experience objective social skills deficits, negative self-interpretation biases, or some combination of the two. This pilot study evaluated evidence in support of the "deficit" and "bias" models. Approval was obtained from the ethics committee of a large private university in Cambridge, MA, USA, and data collection was completed in 2015. We recruited 68 parent-child dyads for a study in which anxious children (with Social Anxiety Disorder) and non-anxious children underwent a child-adapted version of the Trier Social Stress Test. Children were aged 8-14, 67.6% male, and self-identified as 54.4% White, 7.4% Black, 4.4% Latinx, 13.2% Asian, 14.7% multiethnic, and 5.9% "other" or no response. Performance ratings were obtained from children, their parents, and external observers. We found evidence of both specific social skills deficits and self-appraisal biases in anxious children. Anxious children struggled with signs of physical discomfort but not with actual speech content. Although children were generally able to accurately evaluate their social performance, older anxious children were most self-critical. Parents were similarly accurate in appraisals of their children's social performance. Anxious children responded favorably to positive feedback with improved self-evaluations of performance and decreased anxiety. Findings suggest that a comprehensive "integrated" theoretical model of Social Anxiety Disorder should include both skills deficits and self-appraisal biases.
Keywords: Trier Social Stress Test; anxiety; child psychopathology; cognitive biases; parent-child dyads; social anxiety disorder.