Table 2. Descriptive statistics for the measures over the three-time periods assessed in this study, by condition.
| Measure | DBT group (n = 34) Mean (SD) [change from pre-treatment as d] | CBT group (n = 33) Mean (SD) [change from pre-treatment as d] | ||||
|---|---|---|---|---|---|---|
| Pre-treatment | Post-treatment | Follow-up | Pre-treatment | Post-treatment | Follow-up | |
| GAD-7 | 19.46 (6.28) | 12.22 (3.42) [0.92] | 13.14 (4.33) [0.78] | 16.41 (6.42) | 7.43 (2.45) [0.84] | 7.23 (2.50) [0.82] |
| BAI | 31.27 (7.24) | 15.89 (3.28) [0.95] | 14.55 (4.36) [0.89] | 32.31 (6.47) | 7.94 (6.24) [0.77] | 12.36 (6.27) [0.81] |
| BDI-II | 14.62 (5.39) | 8.46 (3.86) [1.07] | 8.63 (4.74) [0.87] | 13.46 (5.21) | 6.11 (4.37) [0.76] | 7.64 (4.52) [0.73] |
| TOL | 18.00 (3.48) | 29.19 (5.42) [0.85] | 28.23 (3.36) [0.84] | 17.92 (3.45) | 24.03 (3.57) [1.23] | 21.62 (3.28) [1.04] |
| WCST | ||||||
| Trials correct | 68.57 (10.42) | 86.30 (13.21) [0.87] | 79.85 (15.74) [0.78] | 65.83 (10.15) | 71.86 (10.16) [0.74] | 69.66 (10.23) [0.92] |
| Trial errors | 59.43 (10.21) | 42.69 (16.28) [0.75] | 48.15 (11.16) [0.77] | 62.17 (10.26) | 56.14 (10.43) [0.72] | 58.24 (11.64) [0.83] |
| Perseverative | 27.88 (14.54) | 14.31 (14.14) [0.74] | 18.61 (9.25) [0.92] | 38.68 (12.37) | 23.62 (8.36) [0.79] | 23.45 (7.26) [0.76] |
| Non-perseverative | 31.12 (10.16) | 27.69 (10.18) [0.82] | 29.49 (10.13) [0.81] | 23.32 (11.41) | 32.38 (9.65) [0.65] | 34.55 (12.46) [0.82] |
BAI = Beck Anxiety Inventory; BDI-II = Beck Depression Inventory-II; CBT = cognitive behavioral therapy; DBT = dialectical behavior therapy; GAD-7 = Generalized Anxiety Disorder scale; SD = standard deviation; TOL = Tower of London computerized task; WCST = Wisconsin Card Sorting Task.