Table 5.
Pearson product-moment correlations between mean fundamental and advanced MI skills and MI inconsistent adherence and competence ratings and in-session change in motivation, client retention, and substance use outcomes
| In-session Change in Motivation | Retention (days in treatment) | Days Primary Drug Abstinence | Percent Negative Urine Screens | |||
|---|---|---|---|---|---|---|
| 4-week Post-Treatment |
12-week Follow-up |
4-week Post-Treatment |
12-week Follow-up |
4-week Post-Treatment |
||
| Overall | ||||||
| Fundamental MI Skills | ||||||
| Adherence | .18*** | .02 | .00 | .00 | -.06 | .05 |
| Competence | .19*** | -.05 | .02 | .00 | .00 | .04 |
| Advanced MI Skills | ||||||
| Adherence | .22*** | .00 | .00 | .00 | -.04 | .08 |
| Competence | .13** | -.12* | -.01 | .01 | -.01 | -.03 |
| MI Inconsistent Strategies | ||||||
| Adherence | -.04 | .06 | -.04 | .09 | .04 | -.08 |
| Competence | -.01 | -.14* | -.03 | -.01 | .03 | -.08 |
| MET Condition Only | ||||||
| Fundamental MI Skills | ||||||
| Adherence | .20*** | .01 | -.03 | .13 | -.02 | .18** |
| Competence | .22*** | -.10 | .04 | .14* | .08 | .15* |
| Advanced MI Skills | ||||||
| Adherence | .21*** | -.06 | .03 | .08 | .02 | .21*** |
| Competence | .20*** | -.13 | .00 | .18** | .05 | .02 |
| MI Inconsistent Strategies | ||||||
| Adherence | -.11 | -.06 | -.20*** | .06 | -.04 | -.17* |
| Competence | -.10 | -.28** | -.11 | .03 | .13 | -.19* |
| CAU Condition Only | ||||||
| Fundamental MI Skills | ||||||
| Adherence | .10 | -.11 | -.02 | -.09 | -.06 | -.02 |
| Competence | .12 | -.16* | -.03 | -.07 | .00 | -.01 |
| Advanced MI Skills | ||||||
| Adherence | .16* | -.15* | -.09 | -.10 | -.06 | -.03 |
| Competence | .01 | -.21** | -.05 | -.15* | -.03 | -.09 |
| MI Inconsistent Strategies | ||||||
| Adherence | .09 | .20** | .08 | .12 | .07 | -.04 |
| Competence | .03 | -.08 | .01 | -.03 | -.01 | -.01 |
Note. The sample sizes varied in the calculation of correlation coefficients involving competence ratings because competence is not rated if items comprising competence scores did not occur. The sample sizes for the correlation calculations ranged from a minimum of 162 for rdays in treatment (4-week post-treatment): advanced MI competence in the TAU condition only to a maximum of 425 for rdays in treatment (12-week follow-up)∷fundamental MI competence in the overall sample.
*
p < .05.
**
p < .01.
***
p < .001