How does SDT relate to motivational interviewing?

MI builds on SDT principles: therapists support autonomy (elicit intrinsic motivation), build competence (develop self-efficacy), and foster relatedness (collaborative alliance).

Why do some clients resist change despite wanting it?

External pressure or shame (external/introjected regulation) undermines change. SDT therapists help connect change to client's own values and identity.

How does SDT improve therapeutic outcomes?

When therapists support autonomy and relatedness, clients show better adherence, deeper engagement, and more durable behavior change.

Sciencesdt-motivation EQ

Self-Determination Theory in Therapy: Supporting Client Motivation and Change

Peter Kolomiets

|April 1, 2026|Updated Apr 13, 2026|8 min read

Self-Determination Theory in Therapy: Supporting Client Motivation and Change

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References

Ryan, R. M., & Deci, E. L. (2000). Autonomy and Relatedness as Core Elements of Well-Being in Clinical Settings
Ryan, R. M., Patrick, H., Deci, E. L., & Williams, G. C. (2008). Self-Determination Theory and Motivational Interviewing in Substance Use Disorders
Williams, G. C., Rodin, G. C., Ryan, R. M., Grolnick, W. S., & Deci, E. L. (1998). Autonomy Support as a Predictor of Therapy Adherence and Clinical Outcomes

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