Figure 3.

Relations Between Psychological Needs and Motivational Styles From Self-Determination Theory and the Core Principles from Motivational Interviewing. Parallels between MI main strategies and factors that are considered in SDT to facilitate integration are striking, providing a theoretical framework for understanding how change occurs. The construct of need satisfaction, as conceptualized within SDT, provides a useful way to understand the positive effects of motivational interviewing. Adapted from [38].