Key Takeaways
- Reinforcement strengthens behavior, not rewards or punishment. In ABA therapy, reinforcement is used to increase helpful behaviors by making positive outcomes more predictable for the child.
- Positive reinforcement adds something pleasant. Praises, toys, or access to preferred activities are introduced after a behavior to encourage it to happen again.
- Negative reinforcement removes something unpleasant. A challenging or uncomfortable situation is reduced or removed when the desired behavior occurs, helping the child learn how to manage or communicate discomfort appropriately.
- Both types of reinforcement teach and motivate. When used consistently and thoughtfully, reinforcement supports learning, builds confidence, and helps children generalize skills across therapy, home, and school settings.
Applied Behavior Analysis (ABA) therapy uses evidence-based strategies to help children learn new skills and reduce behaviors that may interfere with learning or daily life. One of the most widely used and sometimes misunderstood concepts in ABA is reinforcement—specifically, the difference between positive and negative reinforcement.
Both types are designed to increase a desired behavior, but they work in different ways. Understanding how they differ can help parents, caregivers, and educators support their child’s progress more effectively.
What Reinforcement Means in ABA Therapy
In ABA, reinforcement simply means providing a consequence that makes a behavior more likely to happen again. Reinforcement is not about reward or punishment—it’s about strengthening behaviors through consistent, meaningful responses.
For example, if a child says “please” and immediately receives what they asked for, that polite request is being reinforced. The goal is to encourage behaviors that help the child communicate, learn, and navigate their environment more successfully.
There are two main types of reinforcement: positive and negative. Both increase behavior, but they differ in what is added or removed following the behavior.
What Is Positive Reinforcement?
Positive reinforcement occurs when something pleasant or motivating is added after a behavior, making that behavior more likely to occur in the future. It’s called “positive” not because it’s “good,” but because something has been added to the situation.
For instance, imagine a child who cleans up their toys and is praised with, “Great job putting your toys away!” That praise—or perhaps a sticker, hug, or favorite activity—is a positive reinforcer. Over time, the child learns that cleaning up leads to positive attention or access to something enjoyable, and they’re more likely to repeat that behavior.
In ABA therapy, positive reinforcement can take many forms, depending on what motivates the individual child. Some examples include verbal praise, high fives, tokens, extra playtime, or access to a favorite toy or snack. The key is identifying what’s meaningful to the child and using it consistently when they engage in a target behavior.
What Is Negative Reinforcement?
Negative reinforcement happens when something unpleasant or uncomfortable is removed after a behavior, which increases the likelihood of that behavior occurring again. The word “negative” doesn’t mean punishment—it simply means something has been taken away.
For example, consider a child who covers their ears when a loud noise occurs, and the parent turns off the sound. The child’s behavior—covering their ears—was reinforced because it led to the removal of the unpleasant noise. Similarly, a student who finishes homework early to avoid a long study session is experiencing negative reinforcement; the completion of work removes the “aversive” situation of continued studying.
In therapy settings, negative reinforcement might be used to help children learn functional communication skills. A child who says “break please” and is allowed to rest briefly learns that communicating their need appropriately helps them escape an overwhelming task. This not only teaches self-advocacy but also reduces frustration and problem behaviors.
How Positive and Negative Reinforcement Differ
While both strategies increase desired behavior, the key difference lies in what happens after the behavior:
- Positive reinforcement adds something pleasant to strengthen the behavior.
- Negative reinforcement removes something unpleasant to strengthen the behavior.
For example, if a therapist gives a child a favorite toy for completing a task, that’s positive reinforcement. If the therapist reduces the length of a challenging task once the child begins working appropriately, that’s negative reinforcement. In both cases, the goal is to encourage participation and learning—not to punish or coerce.
The misunderstanding often arises because people associate “negative” with punishment. However, in ABA, punishment is a separate concept entirely and is used sparingly, if at all. Reinforcement, whether positive or negative, focuses on teaching and motivation rather than correction.
Why Reinforcement Matters
Reinforcement is one of the most powerful tools in ABA therapy because it helps children understand the connection between their actions and outcomes. When used thoughtfully, reinforcement:
- Builds communication and social skills
- Encourages independence
- Reduces frustration and challenging behaviors
- Creates a positive learning environment
Therapists often use a combination of positive and negative reinforcement depending on the child’s needs, goals, and preferences. Over time, reinforcement is gradually faded as new skills become part of the child’s natural routine and intrinsic motivation develops.
Supporting Reinforcement at Home
Parents and caregivers play an important role in extending these strategies beyond therapy. By noticing what motivates your child and consistently reinforcing positive behaviors, you can help strengthen their progress in everyday settings. Simple actions—like offering praise for cooperation, allowing short breaks during challenging tasks, or celebrating effort—can make a meaningful difference.
Collaboration between therapists and families ensures that reinforcement remains consistent across home, school, and therapy environments. This consistency helps children generalize what they’ve learned, making it easier for them to apply new skills in different situations.
Conclusion
Both positive and negative reinforcement are essential components of ABA therapy, working together to help children build meaningful skills and confidence. The difference lies not in whether one is “good” or “bad,” but in whether something pleasant is added or something unpleasant is removed to encourage learning.
When used with care, understanding, and collaboration, reinforcement helps children make real, lasting progress—one small success at a time.
FAQs
What is the main difference between positive and negative reinforcement?
Positive reinforcement adds something enjoyable after a behavior, while negative reinforcement removes something unpleasant. Both methods increase the likelihood that the behavior will occur again.
Is negative reinforcement the same as punishment?
No. Negative reinforcement strengthens behavior by taking away something aversive. Punishment, by contrast, aims to decrease behavior. ABA therapy focuses primarily on reinforcement, not punishment, to encourage learning and independence.
How can parents use reinforcement at home?
Parents can apply reinforcement by identifying what motivates their child—such as praise, playtime, or breaks—and consistently pairing those with positive behaviors. Over time, these reinforcements help the child connect effort with success in real-life settings.

