Reducing Problem Behaviors in Autism — What Works (And What Doesn’t)

Your child just bit you. Again.

Or threw a toy at their sibling. Or screamed so loudly that the neighbors asked if everything was okay. Or refused to leave the house because the routine changed slightly.

Problem behaviors are why many parents seek ABA therapy in the first place. They’re exhausting. Scary, sometimes. Embarrassing in public. And desperate, you’ve probably tried everything — yelling, punishing, bribing, ignoring.

Here’s what actually works in ABA — and why the approaches you’ve probably tried aren’t working the way you hope.

The First Truth: Behavior Has a Function

Your child isn’t being “bad.” This is the most important shift in thinking.

In ABA, we understand that every behavior serves a function. Your child isn’t biting because they’re a biter or aggressive. They’re biting because it’s working to get them something they want (or away from something they don’t want).

The main functions of behavior:

Escape (Avoidance)

Function: The child wants to get out of something they don’t like.

Example: A child who has a meltdown whenever it’s time to leave the house. The meltdown works because, exhausted, the parent cancels the trip. The child learns: meltdown = stay home (escape the trip I don’t want).

Attention

Function: The child wants your attention and energy.

Example: A child who screams or acts out. Maybe they get ignored in other contexts, so they learned: screaming = mom focuses on me (even though mom’s attention is frustrated, it’s still attention).

Sensory Regulation

Function: The behavior provides sensory input the child’s body craves or needs to calm down.

Example: A child who flaps hands, spins in circles, or paces. They might be regulating their nervous system. For some autistic children, this is calming and necessary.

Access to Preferred Items

Function: The child wants something specific and has learned that aggression or screaming works to get it.

Example: A child who hits you when the iPad is taken away. They learned: hitting = get the iPad back (even if only temporarily).

Communication

Function: The child has something they need or want to express, but lacks the language to say it.

Example: A non-verbal child who screams when hungry. The scream is communication. It’s not ideal communication, but it works.

Critical insight: You can’t eliminate behavior by punishment. You can only change it by addressing the underlying function.

What Doesn’t Work (And Why You Keep Trying It)

Punishment

The approach: “If you hit, you lose screen time.” “If you scream, you go to time-out.”

Why parents use it: It feels logical. Behavior = consequence. And sometimes it works short-term (your child stops the behavior briefly).

Why it doesn’t work long-term:

• Doesn’t teach alternatives: Your child learns not to hit when you’re watching, but hasn’t learned what to do instead.
• Often makes it worse: If the function is attention, time-out is still attention (you’re focused on them). Punishment can actually reinforce problem behavior.
• Creates fear and resentment: Your child learns to fear or resent you, not to understand or regulate themselves.
• Doesn’t address the root: If hitting gets them the iPad, removing screen time doesn’t teach them how to ask for it appropriately.

Ignoring

The approach: “I’ll just ignore the behavior and it will go away.”

Why parents use it: Some parenting advice recommends extinction (ignoring). And sometimes it works short-term.

Why it often backfires:

• Extinction burst: Before behavior gets better, it gets worse. Your child screams louder, longer, more desperately. Most parents give up right before it would have worked.
• Not all behaviors should be ignored: If your child is hitting others or injuring themselves, you can’t ignore it safely.
• Inconsistent ignoring doesn’t work: If you ignore 80% of the time but respond 20% of the time, that actually reinforces the behavior.

Ignoring works only if:

• The behavior serves an attention function
• The behavior is harmless
• EVERYONE ignores it consistently
• You’re prepared for it to get worse before better
• You’re simultaneously teaching an alternative behavior

Yelling/Getting Emotional

The approach: Raising your voice, expressing frustration or anger in response to behavior.

Why parents do this: You’re exhausted. You’ve asked 100 times. It’s a natural human response to frustration.

Why it doesn’t work:

• Reinforces by giving attention: If the child wants attention (even angry attention), you just gave it to them.
• Models dysregulation: You’re teaching your child that when frustrated, you yell. Why shouldn’t they?
• Damages relationship: Your child learns “when I do this, my parent gets angry at me.” They don’t learn an alternative.
• Creates fear: If your child becomes fearful of your reactions, behavior might suppress temporarily, but underneath fear isn’t helpful long-term.

Threats

The approach: “If you don’t stop, we’re not going to the park.” “If you hit again, you’ll be grounded.”

Why it seems logical: Consequences feel like they should deter behavior.

Why it fails:

• Doesn’t prevent the behavior: You can’t threaten away a behavior that’s already happening.
• Creates distrust: If you threaten but don’t follow through (or follow through inconsistently), your threats become meaningless.
• Doesn’t teach: Your child learns “don’t do this or I’ll be punished,” not “here’s what to do instead.”

Restraint

The approach: Physically holding or restraining your child to stop behavior.

The reality: Restraint is sometimes necessary for immediate safety. But as a behavior strategy, it’s problematic.

Why it’s a last resort:

• Can be traumatic for the child
• Often escalates aggression rather than reducing it
• Teaches the child that physical force is how problems are solved
• Doesn’t teach alternatives

When it is necessary: Imminent danger (your child is about to hit their head on a wall, run into traffic, severely injure someone). In these moments, safety comes first. But this is a immediate-crisis measure, not a behavior plan.

What Actually Works in ABA

Step 1: Functional Analysis — Find the Root

What it is: A systematic process (not just guessing) about why the behavior exists.

What the BCBA does:

• Observes when, where, and how the behavior happens
• Identifies patterns: Does it happen at transitions? When demands are high? When they’re bored? When a sibling is getting attention?
• Hypothesizes the function: “I believe this behavior serves [escape/attention/sensory/access] function”
• Tests the hypothesis by manipulating conditions and observing if the behavior changes

Why this matters: A functional analysis takes your guessing out of the equation. You might think your child hits because they’re aggressive. But if functional analysis shows the behavior serves an escape function, your strategy will be different (teach them to request escape appropriately instead of punishing aggression).

Step 2: Teach a Replacement Behavior

The key principle: Don’t just eliminate the problem behavior. Teach your child a better way to get the same need met.

Example: Aggressive Behavior

• Problem behavior: Child hits when they don’t want to do something
• Function identified: Escape (they want to get away from the demand)
• Replacement behavior: Teach them to say “break” or raise their hand to request a break
• The strategy: When they request a break appropriately, immediately give them a break (even if it’s just 30 seconds). They learn: appropriate requesting works better than hitting
• Gradually phase it: You might eventually make breaks shorter or require more work before offering one. But the foundation is: asking works.

Example: Screaming for Attention

• Problem behavior: Child screams whenever you’re on your phone or talking to someone
• Function identified: Attention (they want your focus)
• Replacement behavior: Teach them to say “mom” or tap your shoulder appropriately
• The strategy: When they use appropriate attention-seeking, immediately respond (even just for 10 seconds). When they scream, no response.
• Gradually phase it: Eventually, they learn to wait a bit longer, but the foundation is: appropriate asking gets attention; screaming doesn’t.

Step 3: Prevent Triggers (Set Up for Success)

It’s easier to prevent behavior than to manage it once it starts.

Common prevention strategies:

• Transitions: If behavior always happens at transitions, prepare your child in advance (“In 5 minutes, we’re leaving”). Use visual schedules. Give warnings.
• Demand avoidance: If your child melts down when asked to do something hard, consider spacing out demands. Alternate easy and hard tasks. Build in breaks.
• Sensory needs: If your child’s behavior is sensory-driven, provide appropriate sensory input regularly (jumping, spinning, deep pressure) so the problematic behavior is less frequent.
• Environment: If certain places or situations trigger behavior, limit exposure while you’re teaching alternatives, or modify the environment to be calmer.
• Communication tools: If behavior is partly communication, make sure your child has access to ways to communicate (AAC devices, signing, pictures).

Step 4: Reinforce Desired Behavior (Heavily, Consistently)

This is where most parents struggle: Reinforcing behavior that’s not the problem.

How it works:

• Your child is sitting quietly (no problem behavior). You notice and reward: “Great job sitting nicely! Here’s 30 seconds of tablet.”
• Your child asks for a break instead of hitting. You immediately say “Yes!” and provide a break.
• Your child makes eye contact. You celebrate: “I love when you look at me!”

Why this changes everything: Your child’s brain is learning: Good behavior gets me what I want faster than problem behavior. Over time, why would they use the problem behavior?

The consistency part is crucial: You can’t reinforce appropriate behavior 50% of the time. You need 80%+ consistency, especially early on. Once the behavior is established, you can reinforce less frequently.

Specific Problem Behaviors & ABA Approaches

Aggression (Hitting, Biting, Kicking)

Common functions: Escape, attention, access

ABA approach:

• Identify the function (not “they’re aggressive” but “they hit to escape demands”)
• Teach appropriate communication of the need (request escape appropriately)
• Prevent high-demand situations early on
• Heavily reinforce any non-aggressive attempts to communicate need
• Consistency across all caregivers (if some allow hitting and some don’t, it’s confusing)
• For safety: Practice de-escalation techniques with adults

Self-Injurious Behavior (Head-Banging, Skin-Picking)

Common functions: Sensory regulation, escape, attention

ABA approach:

• Medical assessment first (ensure no pain or medical issue driving it)
• Provide appropriate sensory input regularly (reduce the “need” for self-injury)
• Teach alternative sensory strategies (squeezing, chewing, pressure)
• If function is escape: teach appropriate requests
• If function is attention: ensure attention is available for non-harmful behavior
• Environmental modifications (softer items, padded clothing if necessary for safety)

Tantrums & Meltdowns

Common functions: Escape, access, sensory regulation, communication

ABA approach:

• Functional analysis to understand triggers
• Teach communication of needs (especially for non-verbal children)
• Prevent known triggers when possible
• Provide sensory breaks proactively
• Avoid reinforcing the tantrum (don’t give in to get the tantrum to stop)
• Stay calm and consistent during meltdowns (your child is dysregulated; your regulation helps)
• Debrief after meltdowns (if your child can): “What did you need? How could you ask for that?”

Non-Compliance (Refusing to Do Things)

Common functions: Escape (they don’t want to do it), access (they want something else), attention

ABA approach:

• Provide choices (within limits): “Do you want to do math or reading first?” (Both need to happen, but choice gives control)
• Teach that compliance leads to preferred activities: Work → break → play
• Start with easy requests and build up (your child learns: I can do what’s asked)
• Make requests clear and specific: Not “be good,” but “sit in the chair”
• Follow through consistently (if you say “put on shoes,” you see it through)
• Reinforce compliance richly at first (praise, preferred activity, reward)

Mouthing Objects / Pica

Common functions: Sensory, exploration (for young children), boredom, medical issues

ABA approach:

• Medical assessment: Rule out nutritional deficiencies, GI issues
• Provide appropriate mouthable objects (chew toys, crunchy foods)
• Redirect to appropriate mouthing
• Increase engagement and activities (reduce boredom-driven behavior)
• Teach other ways to explore objects (looking, touching, not mouthing)

The Timeline for Behavior Change

Important expectation-setting: Behavior doesn’t change overnight.

Weeks 1-2: Extinction Burst

When you stop reinforcing problem behavior and start reinforcing alternatives, problem behavior often increases before decreasing. Your child is trying harder: “But it always worked! Why isn’t it working now?”

Many parents quit here. Don’t. This is normal.

Weeks 3-6: Gradual Improvement

Frequency of problem behavior decreases. You see days with fewer incidents. Child is using replacement behavior more often.

Weeks 7-12: Consistent Improvement

Problem behavior is noticeably less frequent. Replacement behavior is becoming more automatic. Other behaviors might emerge (new issues), which is normal as your child’s environment changes.

Months 4+: Maintenance & Refinement

Behavior is stable at a much lower level. You’re working on refinement (making the appropriate behavior more fluent, teaching new skills in relevant contexts).

The bottom line: Real behavior change typically takes 2-6 months of consistent implementation. Faster changes sometimes happen, but patience is important.

When to Adjust vs. When to Stick With It

Stick with a strategy if:

• It’s been consistently implemented for 2-4 weeks
• You’re seeing any small improvement (even 10% fewer incidents is progress)
• Your BCBA confirms the strategy is appropriate

Adjust if:

• It’s been 4-6 weeks with no improvement
• The behavior is worsening
• You’ve discovered new information about your child’s needs (medical diagnosis, environmental change)
• Your child’s function has changed (behavior that was escape-driven is now attention-driven)

Parent Support During Behavior Change

This is hard.** Reducing problem behaviors means you’re changing patterns that have been in place for months or years. It’s cognitively and emotionally demanding.

Give yourself grace:

• You will slip up. You will give in when you said you wouldn’t. You will yell when you meant to stay calm. This doesn’t ruin everything.
• Consistency is the goal, not perfection. 80% consistent implementation still works.
• Your stress response is real. If parenting is triggering your own anxiety or trauma, therapeutic support for you is worth exploring.
• Community matters. Other parents doing this understand. Support groups help.

Closing: Behavior Is Communication

This is the shift: Your child isn’t being bad. They’re communicating a need the only way they know how. Your job is to:

1. Understand the need (functional analysis)
2. Teach them a better way to communicate it (replacement behavior)
3. Make the better way worth their while (reinforcement)
4. Protect them (prevention)

This is harder than punishment. But it works. And it teaches your child not just to behave, but to communicate, to solve problems, to understand their own needs.

That’s real change.

Ready to tackle behavior challenges with strategies that actually work? We provide detailed behavior assessments and create individualized plans for your specific child’s needs. Let’s figure out what’s driving the behavior — and what replacement skills will actually help.