The Language of Change in Motivational Interviewing: Practice Lessons from Paul Amrhein

A person may talk about change several times without becoming any more committed to it. Another person may use fewer change-focused words, yet the strength and certainty in their language may grow as the conversation develops. For practitioners, the difference matters. Listening for change involves more than counting particular words. It asks us to notice direction, strength, timing and the way our responses influence what happens next.

In Episode 36 of Talking to Change: A Motivational Interviewing Podcast, Glenn Hinds and Dr Sebastian Kaplan speak with Professor Paul Amrhein about the psycholinguistics of Motivational Interviewing. Paul describes the origins of his influential research into client language, commitment strength and behaviour change. The conversation also explores double-sided reflections, the balance between questions and reflections, and the idea that change talk is constructed within the interaction rather than produced by the client alone.

1. What can the language of change tell us?

Motivational Interviewing pays close attention to what people say about change. This is not because words guarantee action. Client language offers information about what the person wants, what makes change important, what they believe is possible and how ready they may be to move.

Paul’s work helped make this language observable. Rather than treating motivation as a fixed quality that someone either possesses or lacks, his research examined how language developed during an MI conversation and how particular forms of language related to later behaviour.

This directs our attention away from labels such as “motivated” or “unmotivated”. A more useful question is: What is happening in the person’s language now, and how is it changing as the conversation continues?

2. From DARN-C to contemporary DARN-CAT

Paul explains the development of the original DARN-C coding system. It distinguished different forms of change-oriented language, including desire, ability, reasons, need and commitment. Contemporary MI teaching commonly extends this to DARN-CAT:

• Desire: wanting or preferring change.
• Ability: believing change is possible.
• Reasons: identifying benefits of change or costs of remaining the same.
• Need: expressing urgency or importance.
• Commitment: stating an intention or decision.
• Activation: indicating readiness or preparation.
• Taking steps: describing actions already taken towards change.

These categories can help practitioners recognise change talk, but categories alone do not capture its full meaning. Paul’s coding also attended to valence, whether language moved towards or away from change, and strength, how firmly the person expressed it.

A quiet “I suppose I could try” and a decisive “I am going to do this” may both point towards change, but they do not carry the same strength. Skilled listening attends to that difference without forcing the person towards a stronger statement than they genuinely hold.

3. Listen for movement, not simply frequency

One of the most important practice lessons in the episode concerns the difference between the amount of change talk and its development over time. Adding together every example of change talk in a conversation can conceal very different patterns. One person’s language may remain unchanged throughout. Another person’s language may become progressively stronger, even if both produce a similar total number of change-talk statements.

Listen: Change in Change Talk Matters

Paul encourages practitioners to listen for the trend. Is commitment becoming stronger? Does it rise and then fade? Does the person become more uncertain as planning approaches? How does their language sound near the end of the conversation?

This does not mean continually rating the person in our head. It means remaining alert to movement. Tone, emphasis, pace and word choice may all contribute to our sense that the person is becoming more or less committed.

4. Hold both sides of ambivalence

Attending to change talk does not mean ignoring sustain talk. People need to experience that the whole of their perspective has been heard, including the reasons for continuing as they are.

Paul describes the double-sided reflection as one of the practitioner’s “best friends”. It allows us to acknowledge both directions of ambivalence without arguing for change or endorsing the status quo.

Listen: A Double-Sided Reflection Holds Both Sides

Consider someone who says that alcohol helps them cope with conflict, while also recognising that drinking contributes to further arguments. A double-sided reflection might be:

“Drinking gives you some temporary relief from the strain, and you are also noticing that it can make communication more difficult afterwards.”

The reflection does not decide which side should win. It places both experiences where the person can hear and consider them. Where appropriate, ending with the change-oriented side may invite further exploration, but the reflection must remain accurate rather than strategically distorted.

5. Questions, reflections and the experience of being heard

The episode also examines the ratio of reflections to questions. Questions can provide focus and invite exploration, but a succession of questions may leave the person feeling examined rather than understood. Reflections communicate that we are listening and allow the person to hear their own experience in a new form.

Paul discusses research suggesting that the reflection-to-question balance may matter not only as a measure of practitioner behaviour, but also as part of the relational conditions in which client language becomes meaningful.

The practical lesson is not to chase a ratio mechanically. A reflection inserted solely to improve a count may add little to the conversation. Instead, notice the conversational experience you are creating. Does the person have room to think and elaborate, or are they repeatedly responding to your agenda?

The Motivational Interviewing Treatment Integrity code can help practitioners observe patterns in recorded practice, including questions and reflections. The counts become most useful when they prompt curiosity about what the person may have experienced.

6. Change talk is constructed in the interaction

Perhaps the most important relational point in the episode is Paul’s description of change talk as something constructed between practitioner and client. The words belong to the client, but they emerge within a particular interaction. What we ask about, what we reflect, what we affirm and what we overlook all influence the direction the conversation takes.

Listen: Change Talk Is Constructed Together

This guards against two opposite errors. The first is treating change talk as something we extract from people through the correct technique. The second is behaving as though the practitioner has no influence at all. MI recognises influence while grounding that influence in partnership, acceptance, compassion and empowerment.

Our task is not to manufacture language that sounds motivated. It is to create a conversation in which people can hear themselves exploring change honestly and freely.

7. Help the plan travel beyond the room

Towards the end of the episode, Paul returns to a finding from his earlier research: language near the end of an MI session may be particularly informative. Once a possible plan emerges, the conversation needs to move beyond an idealised intention and consider life outside the consultation.

Useful questions might include:

• How will this work when you return to your usual environment?
• What could make the plan more difficult?
• Who or what might support you?
• How will you notice that the plan is working?
• What will you do if it does not work as expected?

These questions are not a test of commitment. They help the person strengthen, revise or reconsider the plan. Emerging sustain talk at this point may identify an obstacle that needs attention rather than a reason to persuade harder.

8. Learning MI changes the practitioner too

The final part of the conversation considers how professional experience affects learning MI. Experienced practitioners bring listening, empathy and clinical judgement, while also carrying well-established conversational habits. Newer practitioners may have fewer habits to inhibit, but may still be developing the empathy, timing and containment required for skilful reflections.

Paul’s response supports an individualised approach to feedback. Practitioners do not all need to practise the same thing. One person may need to reduce rapid questioning. Another may need to become more directional during evoking. Someone else may need to tolerate silence or listen more carefully before offering a complex reflection.

This is why deliberate practice, observation and informed feedback matter. Development involves identifying a specific target, practising it, reviewing what happened and trying again.

Turn the learning into deliberate practice

1. Track direction and strength

Listen to five minutes of a recorded practice conversation, with appropriate consent. Note examples of change talk and sustain talk. Then consider strength: which statements sound tentative, moderate or strong? Does the language shift over time?

2. Review what you selected to reflect

For every reflection, identify whether you responded to change talk, sustain talk, neutral material or emotion. What pattern do you notice? What might the person have experienced as important to you?

3. Examine questions and reflections

Count your questions and reflections in a ten-minute segment. Use the result as a prompt for learning, not a pass or fail score. Where might an additional reflection have slowed the conversation and communicated greater understanding?

4. Listen to the ending

Review the final ten minutes. Did the person’s language become stronger, remain steady or weaken? Did planning take account of likely obstacles and support? Was the plan genuinely theirs?

Practice takeaways

• Change talk provides information about motivation; it does not guarantee behaviour.
• Listen for the direction, strength and development of language, not only its frequency.
• DARN-CAT helps practitioners recognise different forms of change talk, while tone and context remain important.
• Sustain talk should be understood rather than dismissed or argued away.
• Double-sided reflections can help people hear both sides of ambivalence together.
• The balance between questions and reflections affects the person’s experience of being heard.
• Change talk emerges within an interaction, so practitioner behaviour matters.
• Planning should explore how intentions will work beyond the conversation.
• Observation, feedback and deliberate practice help practitioners change their own conversational habits.

Episode guide

• 00:00 – Opening and introduction
• 02:05 – Paul’s background and introduction to psycholinguistics
• 05:25 – The original DARN-C coding system
• 09:20 – Category, valence and strength of client language
• 14:16 – Commitment strength and outcome findings
• 17:05 – Change across a session rather than total frequency
• 20:34 – Reflecting both sides of ambivalence
• 23:25 – The reflection-to-question ratio
• 31:30 – Change talk beyond substance-use conversations
• 37:03 – Change talk as a construction between practitioner and client
• 44:45 – Helping change transfer beyond the consultation
• 47:10 – Experience, training and learning MI
• 54:26 – End of recording

Continue learning

Change Talk in Motivational Interviewing · Sustain Talk in Motivational Interviewing · Reflective Listening in Motivational Interviewing · Evoking in Motivational Interviewing · The MITI and MI Fidelity · MI Practice Companions

Further learning

Amrhein, P. C., Miller, W. R., Yahne, C. E., Palmer, M., & Fulcher, L. (2003). Client commitment language during motivational interviewing predicts drug use outcomes. Journal of Consulting and Clinical Psychology, 71, 862–878. https://doi.org/10.1037/0022-006X.71.5.862

About this series

The MI Practice Companions turn selected conversations from Talking to Change: A Motivational Interviewing Podcast into practice-focused learning resources. They are designed to help you listen more closely, connect ideas with established MI principles and identify something specific to notice or practise in your own conversations.