Motivational Interviewing: Small Effectiveness

Small effectiveness: 0.38

What is Motivational Interviewing?

1. Method that works on facilitating and engaging intrinsic motivation within the clientjoshua-ness-225844-unsplash in order to change behavior

2. Goal-oriented, client-centered

3. Tries to elicit behavior change by helping clients explore and resolve ambivalence

4. Therapists attempt to influence clients to consider making changes, rather than non-directively explore themselves

5. Acknowledges stages of change

6. Therapist asks open-ended questions, offers the ability to provide affirmations, the capacity for reflective listening, and the ability to periodically provide summary statements to the client

7. Therapists may help clients envision a better future, and become increasingly motivated to achieve it

 

Evidence:

0.44 small to moderate effect: attitude change resulted in regard to illicit drug use in adolescents (Li, Zhu, Tse, N., Tse, S., & Wong, 2016)

0.05 no effect: not effective in reducing illicit drug use in adolescents (Li, Zhu, Tse, N., Tse, S., & Wong, 2016)

0.28 small effect: better than no treatment at all in pediatric healthcare (Gayes & Steele, 2014)

0.27 small effect: reduced alcohol consumption (Riper, Andersson, Hunter, de Wit,  Berking, & Cuijpers, 2014)

0.73 moderate to large effect: internet based motivational interviewing in addicted individuals (Riper, Andersson, Hunter, de Wit,  Berking, & Cuijpers, 2014)

0.23 small effect: face-to-face motivational interviewing in addicted individuals (Riper, Andersson, Hunter, de Wit,  Berking, & Cuijpers, 2014)

0.09 no effect: not effective for reducing health-related behaviors (diet, exercise, safe sex, substance use) (Lundahl, Kunz, Brownell, Tollefson, & Burke, 2010)

0.77 moderate effect: reduced drug use and risky health behaviors (Miller, 2005)

0.39 small effect: reduced drug use and risky health behaviors at 1-3 month follow-up (Miller, 2005)

0.31 small effect: reduced drug use and risky health behaviors at 3-6 month follow-up (Miller, 2005)

0.30 small effect: reduced drug use and risky health behaviors at 6-12 month follow-up (Miller, 2005)

0.11 no effect: reduced drug use and risky health behaviors at 1 year follow-up (Miller, 2005)

0.77 moderate effect: change in motivation to make positive health-related decisions (Hettema, Steele, & Miller, 2005)

0.30 small effect: change in motivation to make positive health-related decisions at 3 month follow-up (Hettema, Steele, & Miller, 2005)

 


 

Gayes, L. A., & Steele, R. G. (2014). A meta-analysis of motivational interviewing interventions for pediatric health behavior change. Journal Of Consulting And Clinical Psychology, 82(3), 521-535. doi:10.1037/a0035917

Hettema, J., Steele, J., & Miller, W. R. (2005). Motivational interviewing. Annual Review Of Clinical Psychology, 1(1), 91-111. doi:10.1146/annurev.clinpsy.1.102803.143833

Li, L., Zhu, S., Tse, N., Tse, S., & Wong, P. (2016). Effectiveness of motivational interviewing to reduce illicit drug use in adolescents: A systematic review and meta‐analysis. Addiction, 111(5), 795-805. doi:10.1111/add.13285

Lundahl, B. W., Kunz, C., Brownell, C., Tollefson, D., & Burke, B. L. (2010). A meta-analysis of motivational interviewing: Twenty-five years of empirical studies. Research On Social Work Practice, 20(2), 137-160. doi:10.1177/1049731509347850

Miller, W. R. (2005). Editorial: Motivational interviewing and the incredible shrinking treatment effect. Addiction, 100(4), 421. doi:10.1111/j.1360-0443.2005.01035.x

Riper, H., Andersson, G., Hunter, S. B., de Wit, J., Berking, M., & Cuijpers, P. (2014). Treatment of comorbid alcohol use disorders and depression with cognitive‐behavioural therapy and motivational interviewing: A meta‐analysis. Addiction, 109(3), 394-406. doi:10.1111/add.12441

 

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