SDT provides a framework behind how and the reasons why MI works. They believe that MI provides an autonomy-supportive atmosphere, which allows clients to find their own source of motivation and achieve their own success (in terms of overcoming addiction). Patients randomly assigned to an MI treatment group found the setting to be more autonomy-supportive than those in a regular support group. Environmental behaviors Several studies explored the link between SDT and environmental behaviors to determine the role of intrinsic motivation for environmental behavior performance and to account for the lack of success of current intervention strategies. Consumer behavior Self-determination theory identifies a basic psychological need for autonomy as a central feature for understanding effective self-regulation and well-being. As adopting these services increases both individual and collective well-being, research has to delve more deeply into the origins of consumers' motivations. For this reason aim at augmenting the understanding of how different types of motivation determine consumers' intention to adopt transformative services. They examine whether Self-Determination Theory (SDT) can be of help in fostering more sustainable food choices by taking a closer look at the relationship between food-related types of motivation and different aspects of meat consumption, based on a survey among 1083 consumers in the Netherlands. Motivation toward the environment scale Environmental attitudes and knowledge are not good predictors of behavior. SDT suggests that motivation can predict behavior performance. Pelletier et al. (1998) constructed a scale of motivation for environmental behavior, which consists of 4x6 statements (4 statements for each type of motivation on the SDT motivation scale: intrinsic, integrated, identified, introjected, external, and amotivation) responding to a question 'Why are you doing things for the environment?'. Each item is scored on a 1–7 Likert scale. Utilizing MTES, Villacorta (2003) demonstrates a correlation between environmental concerns and intrinsic motivations together with peer and parental support; further, intrinsically motivated behaviors tend to persist longer. Environmental motivation Pelletier et al. (1999) shows that four personal beliefs: helplessness, strategy, capacity, and effort, lead to greater amotivation, while self-determination has an inverse relationship with amotivation. The Amotivation toward the Environment Scale measures the four reasons for amotivation by answering the question 'Why are you not doing things for the environment?'. The participants rank 16 total statements (four in each category of amotivation) on a 1–7 Likert scale. Intervention strategies Intervention strategies have to be effective in bridging the gap between attitudes and behaviors. Monetary