William R. Miller
SchoolMotivational Interviewing
Lived1947 – present
FromUnited States
Motivational Interviewing

William R. Miller

Co-created motivational interviewing for behavior change.

Co-founder of motivational interviewing, a collaborative style that resolves ambivalence and strengthens a person’s own motivation to change.

Ambivalence is wanting and not wanting something at the same time.
— William R. Miller

Who they were

William R. Miller is an American clinical psychologist, emeritus distinguished professor at the University of New Mexico. He developed motivational interviewing in the early 1980s and later co-authored its foundational text with Stephen Rollnick. With hundreds of publications, he became a leading figure in the psychology of change and the treatment of addiction.

Their big idea

Motivational Interviewing Theory

People change when they voice their own reasons; the counselor evokes rather than persuades.

The approach they founded

Motivational Interviewing

A collaborative way to resolve mixed feelings and grow your own reasons for change.

Questions in their spirit

What they’d ask you

Sit with one. Answer online, or in the app.

All questions

Carry the idea forward

Miller — What they’d ask you

Psipas asks you one small, honest question at a time — and builds the picture from your answers.