Table 3.
Means, SD, pre to post and post to 6-month follow-up comparisons and effect sizes of all outcome measures
| Pre | Post | Pre to post comparison | 6-month follow-up | Post to follow-up comparison | ||||||
| Measure | M | SD | M | SD | p | d (95% CI) | M | SD | p | d (95% CI) |
| Clinician rated | ||||||||||
| CGI-S | 4.6 | 0.72 | 3.3 | 1.3 | <0.001 | 1.17 (0.61 to 1.72) | 3.0 | 1.43 | 0.015 | 0.22 (−0.01 to 0.45) |
| C-GAS | 55.5 | 6.68 | 62.0 | 8.85 | <0.001 | 0.80 (0.40 to 1.21) | 65.4 | 11.14 | <0.001 | 0.30 (0.13 to 0.46) |
| Self-rated and parent-rated social anxiety | ||||||||||
| SPAI-C | 33.4 | 9.32 | 24.5 | 11.31 | <0.001 | 0.85 (0.36 to 1.34) | 21.5 | 11.24 | 0.023 | 0.27 (0.02 to 0.51) |
| SPAI-P | 35.3 | 8.46 | 27.2 | 11.55 | <0.001 | 0.79 (0.29 to 1.28) | 25.7 | 11.01 | n.s. | |
| SPWSS avoid | 4.0 | 2.38 | 1.9 | 2.22 | <0.001 | 0.91 (0.36 to 1.47) | 1.8 | 1.81 | <0.001 | 0.05 (−0.4 to 0.5) |
| SPWSS s-f | 4.9 | 1.74 | 2.8 | 1.44 | <0.001 | 1.31 (0.61 to 2.02) | 3.3 | 2.03 | <0.001 | −0.28 (−0.83 to 0.26) |
| SPWSS a a | 4.9 | 1.85 | 3.0 | 2.19 | <0.001 | 0.94 (0.32 to 1.55) | 2.4 | 1.92 | <0.001 | 0.29 (−0.18 to 0.76) |
| SPWSS pep | 4.8 | 2.29 | 3.6 | 1.77 | <0.001 | 0.58 (0.02 to 1.15) | 3.3 | 2.30 | <0.001 | 0.14 (−0.36 to 0.65) |
| Other self-rated and parent-rated measures | ||||||||||
| RCADS-C SAD | 18.5 | 5.69 | 14.2 | 5.87 | <0.001 | 0.74 (0.36 to 1.13) | 12.4 | 6.16 | 0.018 | 0.30 (0.05 to 0.55) |
| RCADS-P SAD | 16.4 | 5.88 | 13.2 | 5.70 | 0.006 | 0.55 (0.09 to 1.01) | 12.3 | 6.07 | n.s. | |
| RCADS-C | 60.0 | 24.77 | 42.1 | 21.74 | <0.001 | 0.76 (0.32 to 1.21) | 38.4 | 25.92 | n.s. | |
| RCADS-P | 46.2 | 23.39 | 35.2 | 19.13 | 0.005 | 0.51 (0.11 to 0.91) | 31.8 | 22.31 | n.s. | |
| KIDSCREEN-C | 32.2 | 5.59 | 34.1 | 6.07 | 0.036 | 0.32 (0.06 to 0.59) | 35.7 | 6.93 | n.s. | |
| KIDSCREEN-P | 33.1 | 4.50 | 35.5 | 5.98 | 0.025 | 0.44 (0.06 to 0.82) | 35.8 | 5.85 | n.s. | |
| EWSAS-C | 15.0 | 7.47 | 10.9 | 6.69 | 0.006 | 0.58 (0.14 to 1.01) | 7.8 | 5.28 | 0.004 | 0.50 (0.1 to 0.91) |
| EWSAS-P | 14.6 | 6.51 | 11.4 | 6.88 | 0.002 | 0.48 (0.13 to 0.83) | 9.1 | 7.44 | 0.002 | 0.31 (0.1 to 0.54) |
C-GAS, Children’s Global Assessment Scale; CGI-S, The Clinical Global Impression – Severity; EWSAS-C/P, The Education, Work and Social Adjustment Scale – Child and Parent Version; KIDSCREEN-C/P, The health-related quality of life questionnaire for children, adolescents and their parents; RCADS-C/P, The Revised Children Anxiety And Depression Scale – Child and Parent Version; RCADS-C/P SAD, The Revised Children Anxiety And Depression Scale – Child and Parent Version, SAD subscale; SAD, social anxiety disorder; SPAI-C/P, Social Phobia and Anxiety Inventory – Child and Parent Version; SPWSS, The Social Phobia Weekly Summary Scale; SPWSS a a, SPWSS anticipatory anxiety; SPWSS avoid, SPWSS avoidance; SPWSS s-f, SPWSS self-focus; SPWSS pep, postevent processing.