Table 3.
Descriptive Statistics and Cronbach’s alphas for the development and cross-validation samples.
| Subscale (# of items) | Development sample | Cross-validation sample | ||||
|---|---|---|---|---|---|---|
|
|
|
|||||
| M | SD | Alpha | M | SD | Alpha | |
| CBT | ||||||
| FA/CR (9) | 4.13 | 0.85 | 0.94 | 4.13 | 0.55 | 0.83 |
| DLS (5) | 3.65 | 0.89 | 0.79 | 3.57 | 0.67 | 0.67 |
| Total (14) | 3.89 | 0.81 | 0.93 | 3.85 | 0.56 | 0.85 |
| MET | ||||||
| SS/ECT (11) | 4.13 | 0.78 | 0.94 | 4.21 | 0.54 | 0.88 |
| AA (6) | 3.82 | 1.09 | 0.91 | 4.06 | 0.69 | 0.79 |
| RR (4) | 3.07 | 1.01 | 0.72 | 2.98 | 0.72 | 0.39 |
| CC (4) | 3.59 | 1.06 | 0.81 | 3.67 | 0.83 | 0.66 |
| EE (9) | 3.91 | 0.78 | 0.88 | 3.95 | 0.53 | 0.80 |
| Total (34) | 3.70 | 0.63 | 0.92 | 3.95 | 0.53 | 0.89 |
Abbreviations: FA/CR, Functional Analysis/Coping with Risk (CBT1); DLS, Developing Life Skills (CBT2); CBT, Cognitive Behavior Therapy, Total Scale; SS/ECT, Support self-efficacy/Elicit Change Talk (MET1); AA, Avoid Argumentation (MET2); RR, Roll with Resistance (MET3); EE, Express Empathy; (MET4) AC, Acceptance (MET6)? Should we change the label for this new factor?; CC, Client-Centered (MET5); MET, Motivational Enhancement Therapy, Total Scale.