Table 2.
Baseline, Endpoint, Effect Size on Key Outcome Measures (LOCF)
| MASSI | WL | Effect Size (between-group) |
||
|---|---|---|---|---|
| (n = 15) | (n = 15) | |||
| SRS | 1.03 | |||
| BL | 88.87±12.32 | 85.73±14.14 | ||
| EP | 74.33±12.63 | 84.80±12.18 | ||
| effect size | 1.18 | 0.07 | ||
| PARS | 0.32 | |||
| BL | 14.80±3.67 | 14.53±6.66 | ||
| EP | 14.00±3.44 | 15.47±5.26 | ||
| effect size | 0.19 | -0.12 | ||
| CASI-Anx | 0.30 | |||
| BL | 18.47±9.04 | 18.53±9.47 | ||
| EP | 13.60±5.67 | 16.40±8.87 | ||
| effect size | 0.55 | 0.23 | ||
| DD-CGAS | .52 | |||
| BL | 56.93±11.44 | 60.87±9.03 | ||
| EP | 62.93±9.09 | 61.47±7.77 | ||
| effect size | 0.81 | 0.10 | ||
Effect size (between-group) calculation: change in MASSI (endpoint – baseline) – change in WL (endpoint-baseline)/pooled SD for full sample at baseline
Effect size (within-group) calculation: change score/SD for group at baseline, corrected for correlation between pre- and post-scores for full sample (Morris & DeShon, 2002)
SRS: Social Responsiveness Scale (Constantino & Gruber, 2005); PARS: Pediatric Anxiety Rating Scale (Anxiety Study Group, RUPP, 2002); CASI-Anx: Child and Adolescent Symptom Inventory-4 ASD Anxiety Scale (CASI-Anx; Sukhodolsky et al., 2008); DD-CGAS: Developmental Disabled Children's Global Assessment Scale (DD-CGAS; Wagner et al., 2007). BL: baseline; EP: endpoint