Reinforcement in ABA:
How Positive Behaviours Grow
Reinforcement is one of the most powerful and effective principles in Applied Behaviour Analysis (ABA). It happens when a consequence follows a behaviour and makes that behaviour more likely to occur again. In other words, reinforcement strengthens the actions we want to see more often, helping learners build meaningful and long-lasting skills (MyTeamABA: The Role of Reinforcement in ABA).
Types of Reinforcement
There are two main forms of reinforcement used in ABA:
- Positive Reinforcement (Adding Something Pleasant)
This occurs when something desirable is given after a behaviour, which increases the likelihood of that behaviour repeating.
Example: A child completes their homework and earns a sticker, verbal praise, or extra playtime. - Negative Reinforcement (Removing Something Unpleasant)
This happens when an uncomfortable or unwanted stimulus (thing or situation) is removed following a behaviour, also increasing the likelihood of that behaviour.
Example: In a car, the seatbelt alarm stops once the driver buckles up. Buckling the seatbelt (behaviour) removes the annoying sound (aversive stimulus), making it more likely the driver will buckle up in the future.
Reinforcement Is Defined by Results
A consequence only acts as reinforcement if it actually increases the behaviour over time. For example, if a child starts cleaning their room more often because you praise them, the praise is functioning as a reinforcer for that child. This shows that reinforcement is individualized. What motivates one person may not be reinforcing for another.
Why Reinforcement Works
Reinforcement taps into motivation and natural learning processes. When learners consistently experience encouragement (through praise or rewards) or relief (by removing something uncomfortable), they begin repeating the desired actions. Over time, these positive behaviours become more habitual and stable. According to behavior‑analytic theory, applying reinforcement in a planned, consistent way helps create lasting behaviour change. (Applied Behaviour Analysis Edu – What Is Reinforcement)
Moreover, choosing the right type of reinforcer is important. Since people are motivated by different things, effective ABA programming involves identifying what actually functions as a reinforcer for each individual. (ABA Portal – Types of Reinforcement).
Interested in applying ABA strategies tailored to your situation?
Contact us to schedule a consultation and learn how we can work together to make behaviour change effective and sustainable.