Using Collaborative Problem Solving to enhance Motivational Interviewing

What each one is actually for

Collaborative Problem Solving

The rule that makes Collaborative Problem Solving work is that you may not arrive with the solution already chosen. Ross Greene, the psychologist who developed it, calls the version where an adult decides and imposes Plan A, and the version where the adult simply drops the expectation Plan C; the method itself is Plan B, and its defining feature is that the answer does not yet exist when the conversation starts. It runs in three moves. First, empathy: you ask what is genuinely hard about one specific recurring situation, and you listen to the answer — including the parts that contradict what you assumed — without correcting any of it. Second, you state your own concern plainly, why the expectation matters to you, offered as information rather than as an argument to be won. Third, the two of you generate options and choose one together. The reason for that sequence is practical rather than moral: a plan the person helped design actually gets carried out, and a plan handed to them gets agreed to in the room and abandoned by Wednesday.

Motivational Interviewing

Motivational Interviewing works from a different but related starting point: people rarely change because someone else convinced them to. Miller and Rollnick built the method around a simple observation from addiction counseling — the more a counselor argued for change, the more the client argued against it, a pattern later research called the "righting reflex." Instead of arguing, the practitioner asks open questions, reflects back what they hear rather than correcting it, and specifically listens for the moments a person voices their own reason to change, then draws more of that language out. The technique assumes ambivalence is normal, not resistance to be overcome, and that a person is far more likely to act on a reason they said out loud themselves than one supplied to them.

What you get out of pairing them

Plan B gives you the right target — the specific unsolved problem behind a specific outburst — but it does not tell you much about how to ask for a child's side of it without the conversation collapsing into either interrogation or a fast, unconvincing "I don't know." Motivational interviewing is built almost entirely around that exact skill: how to ask an open question that does not presuppose the answer, and how to reflect what you heard back in a way that makes a person want to say more rather than shut down. Pointed the other direction, Plan B gives motivational interviewing something it does not usually have on its own — a structural guarantee that the adult's concern gets a fair, spoken place in the conversation too, so the exchange is not just skillful listening aimed at getting the child to a predetermined answer, but an actual joint search for a solution that has to work for both people.

What Collaborative Problem Solving rests on

• Externalizing makes pattern visible randomised trials
  Putting an internal pattern into an external, structured form makes it visible and available for examination instead of remaining implicit and merely enacted.
• Parts have positive intent clinical practice
  A behavior that looks like misbehavior is usually a mistaken strategy aimed at meeting a legitimate underlying need rather than an expression of badness itself.
• Collaborative solution generation increases buy in observational studies
  Jointly generating a solution with the person who has the problem produces more durable follow-through than an imposed solution.

What Motivational Interviewing rests on

• Acceptance reduces struggle randomised trials
  Allowing an internal experience to be present without resisting or acting on it reduces the psychological struggle that resistance would otherwise intensify.
• Ambivalence resolution precedes commitment randomised trials
  Explicitly voicing and working through both sides of ambivalence rather than being pushed toward one side increases the likelihood a person commits to change.
• Self generated reasons predict behavior change randomised trials
  A person is more likely to act on change-related reasons they voice themselves than on reasons supplied by someone else.

Where they actually meet

Both practices refuse to accept the presenting behavior as the whole story and go looking for what is underneath it, using an outside adult's structured attention rather than the stuck person's own insight alone to get there. Plan B assumes an outburst is a mistaken strategy for a real need, not badness; motivational interviewing assumes ambivalence and resistance are ordinary, not stubbornness to be broken down. Neither practice tries to argue the person out of their current position. Both instead build a conversation whose whole purpose is to get that position said out loud, accurately, because an accurately stated problem changes what solving it even means.

The principle underneath both

When a person's stated or enacted position is met with acceptance rather than resistance — no argument, no correction, no rush to the adult's preferred answer — the struggle to defend that position tends to loosen on its own, which is what actually makes room for a more accurate account, and eventually a workable solution, to surface. Fighting the position tends to entrench it further; accepting it as the honest current state of things is what lets it move.

What that makes the real goal

Stated plainly, the goal both practices are chasing is getting the stuck person's own account of the problem, in their own words, onto the table before anyone starts proposing what to do about it — because a solution built on the adult's guess at what is wrong routinely fails in a way a solution built on the person's actual stated problem does not. Once the goal is named as "get an accurate, self-generated account before you solve anything," it stops being specific to classroom discipline or to addiction counseling and becomes a general requirement for any conversation aimed at durable change.

Other practices that serve the same goal

Nonviolent Communication pursues a close cousin of this same goal by having a speaker separate an observation, a feeling, and an underlying need before any request is made, with the explicit purpose of surfacing the need rather than jumping to a demand; it carries mostly clinical and observational support rather than large randomized trials. Solution-Focused Brief Therapy's scaling and exception-finding questions — "on a scale of one to ten, where are you right now, and what makes it not a one" — pursue the same goal from a different angle, drawing out a client's own account of what is already working, with a modest but real evidence base in brief-therapy outcome research. Neither tradition was built with a defiant child or a person ambivalent about substance use specifically in mind; both landed on the same underlying requirement, that the person's own account has to come first, from working in entirely different rooms.

Using Collaborative Problem Solving to enhance Motivational Interviewing (MI)

Motivational interviewing is usually practiced one person at a time, with the practitioner's own stake in the outcome kept mostly out of the room, on the theory that stating it risks triggering the righting reflex. Collaborative Problem Solving's structure suggests a specific addition for situations where the interviewer does have a real, legitimate concern of their own, a parent worried about a teenager's drinking, for instance, rather than a neutral counselor: state that concern plainly, in one sentence, before moving into the reflective listening MI is built around, rather than either hiding it entirely or leading with it as an argument. "I'm concerned about your safety when you drive after drinking" said once, without elaboration, followed immediately by genuine open questions about the teenager's own view, gives the conversation something Collaborative Problem Solving insists on and pure MI sometimes omits by design: an honest, brief acknowledgment that the adult's concern is real too, so the eventual solution has to hold both people's stakes rather than only surface the ambivalent person's.

Using Motivational Interviewing (MI) to enhance Collaborative Problem Solving

Plan B's second step, asking for the child's concern, is the step adults most often botch, usually by asking a question that is really a trap — "what were you thinking?" — or by accepting the first flat answer, "I don't know," and moving on to propose a solution anyway. Borrow motivational interviewing's specific tools here. Reflect back, in your own words, whatever fragment the child does offer, without correcting it, before asking anything else — "so part of it was that you felt like nobody asked you first" — which research on reflective listening shows tends to produce more, not less, from the other person, rather than shutting the exchange down. When "I don't know" comes first, treat it the way MI treats early resistance: as the honest starting position of someone still working out what they think, not a wall to push past, and ask a smaller, more specific open question rather than repeating the original one louder. This slows Plan B down, but it is usually the difference between a child parroting back what the adult wanted to hear and a child actually naming the real unsolved problem.

Tuesday afternoon, when your kid slams a math worksheet off the table for the third day running

You sit down after the slam, worksheet on the floor, and start with your own concern in one sentence: "I'm worried you're falling behind and getting more frustrated because of it." Then you ask what's going on for them with the math worksheet, and you get the expected "I don't know" back, flat, arms crossed. Instead of restating the question or offering your own theory, you reflect what little you do have: "okay — something about it is getting to you enough to want it off the table entirely." A pause. Then, quieter: "I don't get why we're doing this kind of problem, nobody explained it, I just feel stupid." That sentence was not available five seconds earlier. It only showed up because the question that got it was not a repeat of the first one, and because what came before it was reflected back rather than argued with. Now you have an actual unsolved problem — a specific math concept that was never taught clearly, plus embarrassment about asking — instead of a guess about defiance, and the solution the two of you build next, a five-minute re-explanation before the worksheet next time, addresses that instead of a problem neither of you had accurately named yet.

When this is worth reaching for

You will know it is the right moment when a Plan B conversation hits the point where the child's stated concern is thin, guarded, or a flat "I don't know," and the adult running it is tempted to either supply an answer for them or skip ahead to proposing a solution before the real problem has actually surfaced.

Where this does not apply

In a genuine safety emergency — a child mid-outburst, dysregulated, unable to access language at all — neither the patience of motivational interviewing nor the joint problem-solving of Plan B is the right tool in that minute; the priority is de-escalation and safety first, with any collaborative conversation about the unsolved problem happening later, once both people are calm enough to actually think. And motivational interviewing's core assumption, that the person holds ambivalence about their own behavior, does not transfer cleanly to a young child who may not yet have the developmental capacity to articulate competing motives at all; with very young children, Collaborative Problem Solving's simpler, more concrete questions usually do more work than MI's reflective style, which was built for adolescents and adults.

What the evidence does and does not support

Collaborative Problem Solving has real outcome evidence in reducing suspensions and behavioral incidents in school and juvenile-justice settings, mostly from program-evaluation and quasi-experimental studies rather than large randomized trials against alternative discipline approaches. Motivational interviewing's core techniques, reflective listening and eliciting self-generated change talk, are among the most heavily trial-tested counseling skills that exist, with decades of randomized evidence in substance-use treatment specifically. Splicing MI's reflective-listening technique into the second step of a Plan B conversation with a child is a reasonable extension of both evidence bases, not a finding from either one; nobody has run a trial comparing standard Plan B against a Plan B conversation modified this way.