It is one of the most common scenes in schools and clinics: A student starts raising their voice, knocking items off their desk, or running toward the door.
A well-meaning therapist or teacher immediately steps in, holding up an iPad or a bottle of bubbles. “First work, then iPad,” they say. Or worse, they hand the iPad over immediately in an attempt to “de-escalate” the situation.
The student calms down. The room goes quiet. The intervention is marked as a success.
But here is the hard truth: You did not reinforce compliance. You reinforced the outburst. And the next time that student wants to get out of work or wants you to look at them, they will scream, throw, or run even faster.
Reinforcement is an Effect, Not an Object
In behaviour analysis, we define reinforcement by its effect on behaviour, not by how much a student likes an object.
[!IMPORTANT] A stimulus is only a reinforcer if it increases the future frequency of the behaviour it follows.
An iPad is not a reinforcer. Bubbles are not a reinforcer. Praise is not a reinforcer. They are simply stimuli. They only become reinforcers if, when delivered after a specific behaviour, that behaviour occurs more often in the future under similar conditions.
If you hand a student an iPad after they throw a pencil, and tomorrow they throw three pencils, the iPad reinforced pencil-throwing.
The Danger of Function-Blind Reinforcers
The mistake comes from treating highly preferred items as universal Band-Aids. We assume that because a student really likes the iPad, it will motivate them to do anything. But behaviour is functional. It serves a purpose: to get something or to get out of something.
If a student’s behaviour is maintained by attention:
- Handing them an iPad to play with on their own doesn’t address their actual need. They don’t want screen time; they want you.
- If you only hand them the iPad when they start acting out, you are teaching them that the only way to get your interest and access preferred items is to escalate.
If a student’s behaviour is maintained by escape from a difficult task:
- Handing them an iPad when they push their math worksheet away perfectly reinforces escape.
- The iPad serves as a highly engaging barrier to learning, making it even harder to transition them back to the task later.
How to Align Reinforcement with Function
To bring science into practice, we have to stop asking “What does this student like?” and start asking:
- What is the function of this behaviour? (What are they trying to communicate or access?)
- What replacement behaviour do we want to teach?
- How can we deliver the functional reinforcer for that replacement behaviour?
Here is how that looks in practice:
| Behaviour Function | The Function-Blind Approach | The Function-Specific Approach |
|---|---|---|
| Attention | Student yells → Hand them an iPad to keep them quiet. | Student uses a communication card to ask for a break with you → Provide 2 minutes of undivided attention. |
| Escape | Student pushes work away → “First do math, then iPad.” | Student asks for help or a break → Allow a brief escape from the task, then return with modified support. |
Actionable Takeaway for Practitioners
Next time you are writing a plan or coaching a therapist:
- Ditch the “Universal Reinforcers” list. Do not list “iPad” or “bubbles” as reinforcers on the plan. List them as “Highly Preferred Items for Pair/De-escalation.”
- Specify the replacement behaviour’s payoff. Clearly define what the student must do to get their functional need met (attention or escape) before they resort to problem behaviour.
- Train staff to recognize the function. Make sure everyone on the team knows why the student is acting out, so they don’t accidentally reinforce escape with a screen.
By matching our reinforcement directly to the function of behaviour, we don’t just stop outbursts in the moment—we teach students how to get their needs met effectively, bringing actual science into daily practice.