Managing Challenging Behaviors: A Four-Step Guide to Understanding Why They Happen

When a child exhibits challenging behaviors—like tantrums, aggression, or defiance—it can be stressful and overwhelming for everyone involved. It’s natural for parents and caregivers to feel frustrated, confused, and even helpless. You might find yourself wondering, “Why is this happening?” and “What can I do to stop it?” The key to effectively managing these behaviors lies not just in reacting to them, but in understanding the reasons behind them.

All behavior is a form of communication. Children, especially those with developmental differences or limited verbal skills, often use their actions to express needs, wants, and feelings they can’t put into words. By looking at behavior as a message, we can shift our perspective from one of frustration to one of curiosity. This approach allows us to become detectives, uncovering the “why” behind the action.

This guide provides a four-step framework to help you understand the function of challenging behaviors. By learning to identify what a child is trying to communicate, you can develop more effective, compassionate, and lasting strategies to support them. This process is a cornerstone of Applied Behavior Analysis (ABA), a field dedicated to understanding and improving behavior.

Understanding the “Why”: The Four Functions of Behavior

In the world of ABA, it’s understood that all challenging behaviors serve one of four primary functions. Think of these as the main reasons or motivations driving an action. Identifying which function a behavior serves is the first and most critical step toward changing it. The four functions are:

1. Escape/Avoidance: To get away from something undesirable.
2. Attention: To gain attention from others (positive or negative).
3. Access to Tangibles: To get a preferred item or activity.
4. Sensory Stimulation: To receive an internal sensation that feels good or relieves discomfort.

Let’s explore how to identify each of these functions using a simple, four-step process.

Step 1: Define the Behavior Clearly

Before you can understand why a behavior is happening, you need to know exactly what it looks like. Vague descriptions like “he had a meltdown” or “she was being difficult” are not very helpful. Instead, describe the behavior in specific, observable terms. What did you see and hear?

Think like a reporter and stick to the facts.

• Vague: “He threw a fit at the grocery store.”
• Specific: “When I said ‘no’ to buying a candy bar, he dropped to the floor, cried loudly, and kicked his feet against the cart for three minutes.”
• Vague: “She was disruptive during class.”
• Specific: “During the math lesson, she repeatedly tapped her pencil on the desk and called out the teacher’s name.”

Being specific helps you track the behavior accurately and see patterns more clearly. Write down exactly what happens without adding any emotional interpretation. This objective description is your starting point.

Step 2: Track the ABCs of Behavior

Once you have a clear definition, the next step is to collect data. The most common method used by a certified ABA therapist is the ABC model. This simple framework helps you document the context surrounding the behavior.

• A – Antecedent: What happened immediately before the behavior occurred? This is the trigger.
• B – Behavior: The specific, observable action you defined in Step 1.
• C – Consequence: What happened immediately after the behavior? This is the response or outcome.

Let’s apply this to our examples:

Scenario 1: Grocery Store

• Antecedent: Parent said, “No, we can’t get the candy bar.”
• Behavior: Child dropped to the floor, cried loudly, and kicked his feet.
• Consequence: The parent said, “Okay, fine, just stop crying,” and gave the child the candy bar.

Scenario 2: Classroom

• Antecedent: Teacher was instructing the class during the math lesson.
• Behavior: Student tapped her pencil on the desk and called out the teacher’s name.
• Consequence: The teacher stopped the lesson and said, “Please be quiet and raise your hand.”

Consistently tracking ABC data over several days or weeks will reveal patterns. You might notice the behavior happens around the same time of day, with the same people, or during specific activities. This information is crucial for the next step.

Step 3: Analyze the Data to Form a Hypothesis

Now that you have your ABC data, it’s time to become a detective. Look at your notes and try to connect the dots between the antecedents, behaviors, and consequences. Your goal is to form a hypothesis about which of the four functions the behavior is serving.

Ask yourself these questions:

• For Escape/Avoidance: Does the behavior often occur when the child is asked to do something they don’t like (e.g., homework, chores, a non-preferred task)? Does the behavior stop once the task is removed? If so, the function is likely to escape. In this case, the child learns that the behavior is an effective way to get out of doing something.
• For Attention: Does the behavior happen when you are busy or paying attention to someone else? Does the child look at you while doing it? Does the behavior stop after they receive a reaction (even a negative one, like a reprimand)? If yes, the function is likely attention. For many children, negative attention is better than no attention at all.
• For Access to Tangibles: Does the behavior occur when the child wants something they can’t have (like a toy, a snack, or screen time)? Does the behavior stop as soon as they get the item? If so, the function is likely accessible. Our grocery store example is a classic case of behavior maintained by access to a tangible item.
• For Sensory Stimulation: Does the behavior happen regardless of who is around or what is going on? Does the child seem to do it because it feels good to them (e.g., rocking, humming, flapping hands)? This is often called “stimming” and its function is automatic or sensory. The reinforcement is internal, making it different from the other three functions, which are socially mediated.

Based on your analysis, you can make an educated guess about the function. For the grocery store tantrum, the hypothesis is that the behavior is maintained by access to the candy bar. For the classroom disruption, the hypothesis is that the behavior is maintained by attention from the teacher.

Step 4: Teach a Replacement Behavior

Identifying the function is only half the battle. The next, and most important, step is to teach a new, more appropriate behavior that serves the same function. A child won’t give up a challenging behavior unless they have a better way to get their needs met.

Here’s how to choose a replacement behavior based on the function:

• If the function is Escape: Teach the child to ask for a break. This could be by saying, “Break, please,” holding up a break card, or using another signal. Honor the request for a short period before guiding them back to the task. This teaches them that communicating their need for a break is more effective than engaging in the challenging behavior.
• If the function is Attention: Teach the child to ask for attention appropriately, such as by tapping you on the shoulder, saying “excuse me,” or holding up a “talk to me” card. It’s also crucial to provide plenty of positive attention throughout the day for good behavior, so they don’t feel the need to seek it out in negative ways.
• If the function is Access: Teach the child to ask for the item they want. This could be through words, signs, or a picture exchange system. It’s also important to teach them how to handle being told “no” or “not right now.” You can practice this by setting up situations where they have to wait for a desired item.
• If the function is Sensory: This one is a bit different. Since the reinforcement is internal, the goal is often to provide a safer or less disruptive way to get the same sensory input. If a child is biting their hand, you might offer a chewy necklace. If they are rocking intensely, you could provide a rocking chair or schedule regular “movement breaks.”

When to Seek Professional Support

This four-step process is a powerful tool for understanding and managing challenging behavior. However, some behaviors can be complex, persistent, or even dangerous. If you are struggling to manage a behavior on your own, or if the behavior puts the child or others at risk, it is important to seek professional help.

A board certified ABA therapist or a behavior analyst (BCBA) is trained to conduct a formal Functional Behavior Assessment (FBA). They can use specialized techniques to definitively identify the function of a behavior and create a comprehensive, individualized behavior intervention plan. They will work with you and your child to teach new skills and create a supportive environment where your child can thrive.

Remember, changing behavior takes time, patience, and consistency. By focusing on understanding the “why,” you are taking the first step toward creating positive, lasting change for your child and your family.