Table 3.
Comparison of outcome measures (BIS-11, CPT-II, Time Paradigm, SKIP and TCIP) between participants assigned to mindfulness training (n = 19) and participants assigned to interpersonal effectiveness training (n = 25)
| Mindfulness | Interpersonal effectiveness | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pre | Post | Pre | Post | Time | Group | Group × Time | Cohen’s d [95 % CI] | |||||
| M | SD | M | SD | M | SD | M | SD | p | p | p | ||
| BIS-11 | ||||||||||||
| Motor | 18.10 | 3.52 | 15.78* | 4.76 | 19.20 | 4.14 | 17.28 | 5.66 | .004 | .30 | .77 | −0.09 [−0.68, 0.51] |
| Attentional | 19.68 | 2.90 | 18.26* | 3.03 | 18.76 | 3.56 | 18.36 | 3.23 | .07 | .63 | .30 | 0.32 [−0.29, 0.91] |
| Non-planning | 23.73 | 6.34 | 21.05** | 5.83 | 24.32 | 7.12 | 23.48 | 5.56 | .006 | .41 | .13 | −0.46 [−1.06, 0.15] |
| CPT-II | ||||||||||||
| Response Style | .72 | 1.20 | .97 | 1.07 | .22 | .40 | .30 | .77 | .21 | .02 | .50 | 0.22 [−0.38, 0.81] |
| Commissions | 11.25 | 9.25 | 9.68 | 7.77 | 14.88 | 8.01 | 13.30 | 7.19 | .09 | .12 | .97 | 0.00 [−0.60, 0.60] |
| Hit RT | 418.30 | 64.60 | 449.03 | 80.08 | 395.27 | 84.27 | 402.95 | 68.31 | .50 | .10 | .39 | 0.37 [−0.24, 0.97] |
| Impulsivity Index | 26.87 | 5.61 | 24.52* | 5.68 | 29.23 | 6.98 | 28.00 | 6.35 | .01 | .11 | .23 | −0.26 [−0.85, 0.34] |
| Time Paradigm | 56.64 | 24.75 | 68.13* | 32.12 | 51.86 | 12.45 | 53.27 | 12.34 | .007 | .11 | .034 | 0.66 [0.04, 1.27] |
| SKIP | 1.19 | .61 | 1.01 | .65 | .96 | .67 | .99 | .57 | .35 | .44 | .18 | 0.40 [−0.21, 1.00] |
| TCIP | 1.32 | .52 | 1.01* | .58 | 1.11 | .55 | 1.24 | -56 | .21 | .96 | .003 | 0.95 [0.31, 1.57] |
Note. M Mean, SD Standard Deviation, BIS – 11 Barrat Impulsiveness Scale, CPT – II Continuous Performance Test, Hit RT Hit Reaction Time, SKIP Single Key Impulsivity Paradigm, TCIP Two Choice Impulsivity Paradigm. Group by time interactions refers to univariate effects, T- test *p < .05, **p < .01. Effect sizes refer to pre- and post-treatment differences