A classification of motivation and behavior change techniques used in self-determination theory-based interventions in health contexts.

This is the authors' abstract. We don't add key points for this paper.

While evidence suggests that interventions based on self-determination theory have efficacy in adoption and maintenance of health-related behaviors, and in promoting adaptive outcomes, the motivational techniques that comprise the content of these have not been comprehensively identified or described. The aim of the present was to develop a classification system of the techniques that comprise self-determination interventions, with satisfaction of psychological needs as an organizing principle. techniques were identified through a comprehensive review of self-determination interventions and nomination by experts. The study team developed a preliminary list of techniques accompanied by labels, definitions, and function descriptions of each. technique was aligned with the most closely-related psychological need satisfaction (autonomy, competence, or relatedness). Using an iterative expert consensus , participating experts (N=18) judged each technique on the preliminary list for , essentiality, uniqueness, and the proposed link between the technique and basic need. The procedure produced a final classification of 21 motivation and change techniques (MBCTs). Redundancies between final MBCTs against techniques existing behavior change technique taxonomies were also checked. The classification is the first formal attempt to systematize self-determination theory intervention . The classification is expected to enhance consistency in descriptions of selfdetermination theory-based interventions in health contexts, and assist in facilitating synthesis evidence on interventions based on the theory. The classification is also expected to guide efforts to identify, describe, and classify the techniques that comprise self-determination -based interventions in multiple domains.