Motivational interviewer encourages clients to talk about their need for change and their own reasons for wanting change. Motivational interviewing evolved from Carl Roger's person centered approach to counseling, as a method to help clients commit to the difficult process of change (Sommers-Flanagan & Sommers-Flanagan, 2017). The first goal is to increase the client's motivation, and the second is for the client to make the commitment to change.
Reference:
Sommers-Flanagan, J., & Sommers-Flanagan, R. (2017). Clinical interviewing (6th ed.). Hoboken, NJ: John Wiley &
Sons.