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OARS in Motivational Interviewing: What to Expect

Motivational interviewing works by not arguing for the change. What OARS stands for, where the evidence is strongest, and what it feels like as the client.

10 min read

Two seated people facing each other, one holding a mug and the other a clipboard, rendered as a flat orange, yellow and teal illustration.

Key takeaways

  • OARS stands for Open questions, Affirmations, Reflective listening and Summaries, and it describes what the counsellor does rather than what you have to do.
  • The method works by deliberately not arguing for the change, because somebody pushed towards a decision tends to voice the counter-argument and then believe it more.
  • Ambivalence is treated as the normal state of a person considering a change rather than as resistance, which is the opposite of most advice anybody gets about changing.
  • The evidence is strongest for substance use and health behaviour change, and the effects are consistently modest and rarely better than another active treatment.
  • It is a conversational style rather than a school of therapy, so you may meet it inside cognitive behavioural therapy, an addiction service or a routine medical appointment.

OARS stands for Open questions, Affirmations, Reflective listening and Summaries, and it is the shorthand for what a motivational interviewing conversation is made of. The more useful thing to know before you sit in one is what those four are arranged around: this approach works by deliberately not arguing for the change you are considering.

Almost everything written about OARS is training material for practitioners, which is an odd thing to hand somebody who has just been referred for four sessions of it. This is the view from the other chair.

Why arguing for a change makes people argue against it

Push somebody who is undecided towards a decision and they tend to say the counter-argument out loud. Having said it, they believe it slightly more, because people are persuaded by their own sentences far more reliably than by anybody else’s.

You will recognise this, probably from a relative. Somebody tells you that you drink too much, or work too late, or should have left that job by now, and you hear yourself defending the exact thing you were privately worried about an hour earlier. Nothing is resolved. What has happened is that you have now made the case for staying as you are, in your own voice, and it has become a little more true than it was.

Motivational interviewing takes that seriously enough to build the whole method on it. The research distinguishes between change talk, meaning anything a person says in favour of changing, and sustain talk, meaning anything they say in favour of things staying as they are. A counsellor who supplies the argument for change reliably draws the other half out of the client, so the practitioner’s job is defined partly by what they refuse to say. [miller-rose]

The point of the refusal is not politeness. It is that the argument only counts if it comes out of your mouth.

What OARS stands for

OARS is Open questions, Affirmations, Reflective listening and Summaries: the four things a good conversation about change contains. They describe what the counsellor does rather than what you are supposed to do, which makes them a workable test of whether you are getting the real thing.

  • Open questions. Questions you cannot answer with yes, no or a number. “What would have to be different in a year for you to call this worth it” rather than “do you want to stop drinking”.
  • Affirmations. Naming something you actually did. “You rang three places, got a straight answer from none of them, and rang a fourth” is an affirmation. “Well done, that’s great” is encouragement, which is a different and much weaker thing.
  • Reflective listening. Saying your own position back to you, sometimes with a small extension on the end, so that you hear it. The experience clients most often describe is mildly uncomfortable: hearing something you said, with no argument attached to it, and then disagreeing with yourself.
  • Summaries. Gathering up what you have said at intervals, and choosing what to gather. This is where the steering is most visible, because the counsellor is deciding which of your sentences to place next to which.

That is the entire acronym, and it matters less than the people who teach it suggest. Technique without the stance underneath it, that the case for change is yours to make, produces something that feels like being handled.

How it differs from the usual advice about changing

The difference is in who supplies the reasons, and in what mixed feelings are taken to mean. Ordinary advice treats your reluctance as the obstacle; this treats it as the subject.

What most conversations about change doWhat this does instead
Supply the reasons for changingAsk what your reasons are, then stop talking
Treat mixed feelings as something to get pastTreat mixed feelings as normal, and as the actual material
Correct the inaccurate thing you just saidLet it stand, and ask what else is true
Offer advice as soon as the problem is clearAsk permission before offering any
Read reluctance as denial or lack of commitmentRead it as a sign the conversation moved too fast
Aim at a decision by the end of the sessionAim at one sentence you had not said before

The right-hand column is what people find strange at first and useful later. It is also why the approach is difficult to run on yourself, since you cannot easily withhold your own arguments from yourself.

Where the evidence is strongest, and how strong it is

Substance use and health behaviour change: drinking, drug use, smoking, taking medication as prescribed, diet and exercise. The effects there are real and small, and honest accounts of the research say so plainly.

A Cochrane review of motivational interviewing for substance use found it may reduce substance use compared with no intervention over a short follow-up, and probably reduces it slightly compared with assessment and feedback at medium and long-term follow-up. Compared with other active interventions, it found no difference at any follow-up point, on low-certainty evidence throughout. [schwenker-cochrane]

A meta-analysis of 119 studies, covering substance use, health behaviours, gambling and engagement with treatment, found an average effect in the small range against weak comparison conditions and a non-significant one against specific active treatments. [lundahl-2010] In medical settings the picture is similar: across 48 randomised trials and 9,618 participants, the advantage over usual care was statistically clear and, in the authors’ own description, modest. [lundahl-2013]

Read together, those three say something specific. This approach beats doing nothing, and beats being told what to do and handed a leaflet. It does not clearly beat a proper course of another treatment. That is why it is usually attached to something else, commonly as a short front end of one to four sessions before or alongside the main work, which is how it most often appears in the services described in our guide to what addiction treatment involves.

It is a style, not a school of therapy

Motivational interviewing is a way of conducting a conversation rather than a body of theory about why people are the way they are. That is the difference between it and cognitive behavioural therapy (CBT), which comes with an account of how thoughts, feelings and behaviour interact and a set of tasks that follow from it.

The practical consequence is that you may meet this style anywhere. Inside CBT, in a fifteen-minute appointment about blood pressure medication, in a physiotherapy clinic, in an addiction service, from a nurse. Very few people describe themselves as motivational interviewers, so asking whether somebody “does” it is a poor question. A better one, and it works on any practitioner, is how they usually handle a client who is not sure they want to change. Our comparison of what a psychiatrist, a psychologist and a therapist can each actually do covers who you are likely to be sitting in front of when you ask it.

What it feels like from your side, and why people leave

The commonest complaint is that it feels evasive. You arrive wanting to be told what to do, you ask a direct question, you get a question back, and after two sessions of that a reasonable person concludes the counsellor is either withholding or not very good.

That reading is understandable and it is wrong, and there are two things worth knowing before you decide.

The first is that the counsellor is not forbidden from giving you information. The method has an explicit move for it: ask your permission, give the information plainly, then ask what you make of it. So saying “I would like your actual opinion on this” is not rude and does not break anything. A competent practitioner will answer you.

The second is that if what you want is instruction rather than exploration, say so in the first session rather than the fourth. Somebody who has already decided and wants a plan is poorly served by four sessions of being asked how they feel about a decision they made in March. At that point the question has stopped being motivation and started being structure, which is the distinction our piece on motivation versus discipline is about.

Ambivalence is treated as normal, not as a problem with you

Being in two minds is the expected state of a person thinking about a change, rather than evidence of denial or weak commitment. Practitioners treat it as the material to work with, not as an obstacle standing in front of the material.

This is the reverse of nearly every other message anybody gets about changing, and it is the part readers tend to find most relieving. The usual framing says that wanting to stop and not stopping is a contradiction you should be embarrassed about. This one says both halves are genuinely yours, that most people sit in that position for a long time before anything moves, and that the way out runs through describing both sides accurately rather than through picking one and declaring it.

That single reframe is often what makes the conversation possible, because a person who expects to be judged for the ambivalent half will simply not mention it.

Is this approach likely to suit what you want right now?

Tick anything true. This is a reflection prompt rather than a test, and it produces no diagnosis.

0 of 6 ticked

No screener on this site measures readiness to change, and none covers motivational interviewing, so there is no quiz here that will tell you whether it suits you. What the free self-assessment screeners do cover is anxiety, depression, stress, insomnia, burnout, self-esteem and loneliness, which is frequently what is sitting underneath the thing you are ambivalent about.

What it is not: a way of getting somebody else to change

It is not a technique you can run on a relative, and the attempt usually produces the exact pushback the method exists to avoid. This is the question a lot of people arrive with, so it is worth answering directly.

Two reasons it fails in a family. The stance is what does the work, not the technique, so asking careful open questions while privately holding a fixed outcome is an interrogation with a pleasant voice, and people detect it quickly. The people who have known you longest detect it fastest. And a counsellor’s usefulness comes partly from having nothing at stake in your decision, which is not a position a partner, a parent or an adult child can occupy, however well they behave.

What does transfer is the smaller, negative half. Say the worried thing once, plainly, and give it a date and a detail rather than a character judgement. Then stop supplying reasons. Ask what they think and let the silence sit, and do not answer their objection for them, because answering it is what hands them the argument to defend. That is a long way short of motivational interviewing, and it is the part that reliably helps.

When to seek help

Speak to a doctor or a therapist if a habit you have tried to change on your own has stayed put for months, if it is affecting your sleep, your work or the people around you, or if you have found yourself defending something you privately want to stop. Say when you book that you have not decided yet, because it is true and because it puts you in front of the right kind of conversation. Our guide to finding a therapist covers costs, licences and what to do when nobody answers the phone.

Go sooner if alcohol or drugs are involved, if a physical health condition depends on the change, or if low mood or anxiety is underneath the habit rather than beside it. Treating what is underneath frequently does more for the behaviour than any conversation about the behaviour does.

Contact your local emergency services or a crisis helpline if you feel unsafe or have thoughts of harming yourself.

How MyFreud can help

MyFreud is a mobile app that helps you find solutions to problems that have affected your mind and productivity. Live coaching sessions give you somewhere to say the argument for changing in your own words, which is the thing this whole approach turns on, and each one ends with an actionable plan rather than encouragement. Daily tracking shows whether the habit you are ambivalent about is costing you what you think it is, which is harder to argue with than a memory. The notepad is where the sentence you meant to say in the appointment can wait until the appointment.

Download MyFreud and start today: App Store or Google Play.

Frequently asked questions

What does OARS stand for in motivational interviewing?

Open questions, Affirmations, Reflective listening and Summaries. Open questions are ones you cannot answer with yes, no or a number. Affirmations name something you actually did rather than offering praise, and reflective listening is the counsellor saying your own position back to you so that you hear it. Summaries gather up what you have said at intervals and choose what to collect. All four describe what the practitioner does, so together they work as a rough test of whether you are getting the real thing.

What is motivational interviewing in simple terms?

It is a way of having a conversation about change in which the other person deliberately does not argue for the change. The reasoning is that people are persuaded by their own sentences far more than by anybody else’s, so a counsellor who supplies the argument tends to provoke the counter-argument from the client instead. So the counsellor asks, reflects and summarises until you make the case yourself, if you are going to make it at all. It usually runs for a small number of sessions and is often attached to another treatment rather than used alone.

Does motivational interviewing actually work?

Modestly, and mostly against doing nothing. A Cochrane review of substance use found it may reduce substance use compared with no intervention over a short follow-up, and found no difference compared with other active interventions at any follow-up point, all on low-certainty evidence. A separate meta-analysis of 119 studies found a small average effect against weak comparison conditions and a non-significant one against specific active treatments. That pattern is why it is generally used as a front end to treatment, or alongside it, rather than instead of it.

Can I use motivational interviewing on a family member?

Running it on somebody usually produces exactly the pushback it was designed to avoid, because the stance rather than the technique is what does the work. If you ask open questions while privately holding a fixed outcome, the person can tell, and the people who know you best can tell fastest. What does transfer is the negative half of it: say the worried thing once, plainly, then stop supplying reasons, ask what they think, and do not answer their objection for them. That is far less than motivational interviewing, and it is the part that actually helps.

Is motivational interviewing a type of therapy like CBT?

Not really. Cognitive behavioural therapy (CBT) is a school, with a theory about how thoughts, feelings and behaviour interact and a set of tasks that follow from it. Motivational interviewing is a style of conversation with no theory of the person attached, which is why a therapist can use it inside CBT, and why a doctor, a nurse or a physiotherapist can use it in an appointment that is not therapy at all. Asking a practitioner how they usually handle somebody who is unsure whether they want to change will tell you more than asking whether they use it.

References

  1. 1.Miller WR, Rose GS ( 2009). Toward a theory of motivational interviewing. American Psychologist. doi.org .
  2. 2.Schwenker R, Dietrich CE, Hirpa S, et al. ( 2023). Motivational interviewing for substance use reduction. Cochrane Database of Systematic Reviews. doi.org .
  3. 3.Lundahl BW, Kunz C, Brownell C, Tollefson D, Burke BL ( 2010). A meta-analysis of motivational interviewing: twenty-five years of empirical studies. Research on Social Work Practice. doi.org .
  4. 4.Lundahl B, Moleni T, Burke BL, et al. ( 2013). Motivational interviewing in medical care settings: a systematic review and meta-analysis of randomized controlled trials. Patient Education and Counseling. doi.org .