Positive vs. Negative Reinforcement in ABA: Key Differences (With Simple Examples)

Quick answer: In ABA, reinforcement means a behavior happens more often in the future because of what happens after it. The difference is:

• Positive reinforcement: you add something the person likes after a behavior (so the behavior increases).
• Negative reinforcement: you remove something the person dislikes after a behavior (so the behavior increases).

Important: Negative reinforcement is not punishment. “Negative” just means “take away.”

First, what does “reinforcement” mean?

Reinforcement is any consequence that makes a behavior more likely to happen again. If a consequence does not increase the behavior over time, it’s not reinforcement (even if it was intended to be).

Positive reinforcement (add something pleasant)

Definition: After the behavior, you add something the learner finds rewarding, and the behavior increases.

Simple examples

• A child says “help” instead of crying → adult helps immediately → the child uses “help” more often.
• A child cleans up toys → earns a sticker/token → cleaning up happens more often.
• A child sits at the table for 2 minutes → gets praise and a preferred activity → sitting increases over time.

Why it works

Positive reinforcement strengthens skills by making success feel worth repeating. In high-quality ABA, it’s used to build communication, independence, learning readiness, and social skills.

Negative reinforcement (remove something unpleasant)

Definition: After the behavior, you remove something aversive (unpleasant), and the behavior increases.

Simple examples

• A child says “break please” → the adult pauses the task → requesting a break increases.
• A child puts on headphones → the loud noise feels less intense → the child uses headphones more often.
• A teen completes a task → nagging stops → completing tasks increases (because it ends the nagging).

Why it works

Negative reinforcement strengthens behaviors that help someone escape, avoid, or reduce discomfort. It can be healthy and appropriate—especially when the “removed” thing is reasonable (like a short break from a hard task) and paired with teaching coping/communication skills.

Negative reinforcement vs. punishment (common confusion)

People often mix these up because both contain the word “negative.” Here’s the difference:

• Reinforcement = behavior goes up.
• Punishment = behavior goes down.

What is negative punishment?

Negative punishment means you remove something desired after a behavior, and the behavior decreases. Example: a child hits → loses iPad time → hitting decreases.

What is positive punishment?

Positive punishment means you add something unpleasant after a behavior, and the behavior decreases. Example: a child touches a hot stove → feels pain → touching the stove decreases.

Key point: “Positive/negative” describes adding/removing. “Reinforcement/punishment” describes whether the behavior increases or decreases.

A quick cheat sheet (easy to remember)

• Positive = add
• Negative = remove
• Reinforcement = behavior increases
• Punishment = behavior decreases

How ABA uses reinforcement (what good practice looks like)

In quality ABA, reinforcement is:

• individualized (what’s motivating for one child may not be for another)
• paired with skill teaching (communication, coping, independence)
• faded over time (so the child doesn’t need constant rewards to succeed)
• balanced and respectful (not “forced compliance,” not ignoring distress signals)

Common mistakes parents should avoid

• Calling punishment “negative reinforcement”: if behavior goes down, it’s punishment, not reinforcement.
• Reinforcing the wrong behavior accidentally: if screaming gets the iPad back, screaming may increase.
• Using reinforcement without teaching: rewards alone don’t build skills; instruction and practice do.

FAQ

Is negative reinforcement bad?

No. Negative reinforcement is a learning process, not a moral judgment. It can be helpful (e.g., teaching a child to request a break). The key is using it ethically and pairing it with skill-building.

What is the best type of reinforcement in ABA?

It depends on the learner and the goal. Many programs use positive reinforcement heavily to teach new skills. Negative reinforcement can also play a role, especially for coping and appropriate escape requests.

Key takeaway

Positive reinforcement adds something the learner likes after a behavior, increasing it. Negative reinforcement removes something unpleasant after a behavior, increasing it. Both can be used in ABA to strengthen meaningful, functional skills—especially when paired with respectful teaching and clear goals.