Assent-Based Teaching: How Toleration Skills Fit In

A toleration ladder is the simplest version of this work: a learner tolerates a sucky thing for 1 second, then 5 seconds, then 15 seconds, then 45 seconds, and the goal at the top is generalized toleration, which is the ability to sit with hard stuff in any setting, not just the one you trained in. Toleration is a skill, just like reading or asking for a break. If you teach it on purpose, the learner gets better at hard things. If you teach it by accident, you get short-term compliance and a kid who is just tired of fighting you. This page is about teaching it on purpose.

Accidental vs purposeful toleration training#

Most assent withdrawals get the same response: back off, wait for calm, present the same task again. That can look like progress for a few sessions. The learner stops pushing back. The data trends up. But nothing in the environment changed, which means the learner is the only thing that changed. They learned that the hard thing eventually goes away if they ride it out.

What's actually happening is you're accidentally teaching toleration skills. By accident, you're teaching the learner that this hard thing is happening, that it's going to go away, then we can move on and try something else. From the talk — Matt Harrington

That kind of toleration is brittle. It only works in the room where you built it, with the people who built it. Move the learner to a new clinician, a new building, a new task family, and the skill does not travel. Purposeful toleration training is different. You name the skill, you pick the step size, you set the success criteria, and you graph it like any other acquisition target. You are not waiting for tolerance to show up. You are teaching it.

Imagine if instead of teaching coping skills or toleration skills accidentally, you taught it purposefully. And that's what proper ascent-based care is. From the talk — Matt Harrington

The duration ladder (1s, 5s, 15s, 45s)#

The cleanest version of a toleration program is a duration ladder. You pick the sucky thing the learner is moving away from. You pick a starting duration small enough that the learner can win on the first try. Then you grow the duration in small jumps. A 1-second jump, then a 5-second hold, then 15 seconds, then 45 seconds, and onward.

The 1-5-15-45 numbers are not magic. They are a shape: short jumps early so the learner stacks wins, longer jumps later once tolerance is real. If the learner is brand new to the skill, start at 1 second of tooth brushing, or 1 second of hand on the doorknob, or 1 second of the math worksheet on the desk. Yes, 1 second. The point is to get a clean assent on the first rep so you have something to build from.

Mastery at each step is usually three clean reps across two days, but you can move that bar. The faster you climb, the more your data will tell you whether the bar was right.

The quantity ladder (1 hard thing, 3, 10)#

Duration is one axis. Quantity is the other. Some tasks are not about how long you sit with one hard thing. They are about how many hard things you stack in a row. A homework page. A grocery store aisle. Three transitions on a Tuesday morning.

The quantity ladder follows the same shape as the duration ladder. Start with one hard thing. Once one hard thing is easy, move to three. Once three is easy, move to ten. The "easy" part is the whole point. You are not looking for white-knuckle compliance at each step. You are looking for a shrug.

Duration and quantity often blend in practice. A learner might tolerate one math problem for 5 seconds, then three math problems for 5 seconds each, then three math problems with no clock at all. Pick the axis the environment cares about and shape that one first.

Picking step size that matches the learner#

Step size is the single biggest dial on a toleration program. Too big and the learner withdraws on the first rep, you back off, and you are stuck. Too small and you waste session time on steps that were never going to fail.

A working rule: if you get two clean reps in a row at a step, the next step is fair game. If you get a withdrawal at the new step, the step was probably too big. Cut it in half and try again. If the learner can clear the cut-in-half step in one try, you know the original jump was close, so try a smaller jump next time. If the learner still struggles at the cut-in-half step, the underlying task is probably the problem, not the ladder. That is usually a signal that the environment still has too many bad things in it and the ladder cannot do all the work alone.

Watch the body language. A learner who is white-knuckling a 5-second hold is not assenting. They are tolerating in the bad sense, riding it out. That data point looks like a success on the sheet and is actually a failure in the room.

When toleration replaces environmental modification#

The first move when a learner withdraws assent is to change the environment. Shorten the task. Move to a beanbag chair. Swap the pencil for a highlighter. Cut the worksheet from 10 problems to 1. Most of the time, environmental modification is enough.

Sometimes it is not. Some tasks are stuck. Personal hygiene for a 16-year-old is going to be boring. A bus ride is going to take time. Laundry is going to be laundry. When you have already shrunk the bad as far as it will go and the task still has more bad than good, the skill has to do the rest of the work.

It is the skill that makes the sucky things less sucky. When you cannot reduce a bad by changing the environment, you have to reduce the bad by introducing a skill that makes it easy. From the talk — Matt Harrington

This is the moment to step into a toleration program on purpose. You are not giving up on environmental change. You are admitting that the environment has done its job and the next gain comes from the learner getting stronger.

Building toward generalized toleration#

A toleration ladder for one task is useful. A learner who can tolerate generalized waiting, generalized cleaning, and generalized writing is playing the long game. Generalized toleration means the skill rides along to new tasks, new settings, and new people without a fresh ladder for each one.

When you think about something like generalized waiting, right?... In the same way of toleration, right? Whether it is tolerating laundry, tolerating cleaning, tolerating the dishes. From the talk — Matt Harrington

The way you get there is by stacking successful toleration events across categories. Tolerating a 45-second tooth brush is one event. Tolerating a 45-second waiting period is another. Tolerating a 45-second handwriting trial is a third. Over time, the learner builds a class of "I can sit with this" responses that is not tied to any single task. That is when families start to see the gains outside the room.

Two practical tips. First, deliberately vary the task once the ladder is climbing. Same step size, different sucky thing. Second, keep the learner's values in the picture. A 16-year-old who hates personal hygiene will climb a hygiene ladder faster when hygiene is tied to friendships they care about. Values do not replace the ladder. They expand the good side so the ladder does not have to fight as hard.

Data sheets and progression criteria#

A toleration program needs three columns at minimum. Step (the current duration or quantity), reps at step (how many clean reps you have logged), and outcome of the last rep (assent provided, assent withdrawn, withdrawal after the rep finished). That is enough to decide what happens next.

Set the progression criteria in writing before the session starts. The default is two to three clean reps at the current step, then move up. The default for stepping down is one withdrawal at the current step, drop back to the last clean step, run two clean reps, then try the original step again. If you have to drop down twice in one session, the step was wrong and you need to recut the ladder.

For RBTs (a registered behavior technician, the front-line staff running sessions), the most useful rule is the 3-withdrawal rule: three assent withdrawals in a row at the current step, stop and call the BCBA (a board certified behavior analyst, the clinician who writes the plan). Three is the trigger because two could be noise. Three is a pattern, and the pattern means the ladder is wrong.

One more thing the data should track: fidelity. The toleration step you wrote and the toleration step the learner actually got need to match. If a session had a 15-second step on paper and a 22-second step in practice, the withdrawal data is telling you about the step you ran, not the step you planned.

Frequently asked questions#

Is toleration training the same as escape extinction?

No. Escape extinction blocks the escape and waits for the behavior to drop. Toleration training shrinks the task, builds up tolerance in small steps, and only grows the task as the learner clears each step cleanly. Escape extinction punishes withdrawal. Toleration training treats withdrawal as a signal that the step was wrong.

How do I know if my step size is too big?

The step is too big if the learner withdraws on the first or second rep at the new step, and a smaller version of the step gets a clean rep. The step is also too big if you get a clean rep but the body language is white-knuckled. A learner who is barely holding it together at a step is going to withdraw on the next one, and the data sheet will not tell you that until it is too late.

What if the client never tolerates more than 5 seconds?

Two things to check first. One: is the underlying task already shrunk as far as it will go? If the worksheet is still 10 problems and the chair is still cold, the ladder is being asked to do more work than it can. Two: is the good side big enough? A 5-second ceiling often means the reinforcement is not lined up with what the learner actually values. Switch from generic tokens to something tied to the learner's interests or long-term goals. If both sides check out and the ceiling is real, you may need to drop the step size below 1 second. Try half a second, then 1, then 2, and rebuild from there.

Want a fuller walkthrough?#

The CEU this page is built from walks through the duration ladder, the quantity ladder, and the RBT 3-withdrawal rule with real session examples: the DTT (discrete trial training, a structured teaching format) table, the school bus rebuild, the personal hygiene teen, and the laundry comparison. It is a free recording from openceu.com.

Watch the full CEU on assent-based teaching