Functional Assessment Procedures for Registered Behavior Technicians
Case Study: Alex and Functional Assessment Implementation
Client Profile: Alex is a year old boy who demonstrates specific behavioral challenges including tantrums during transitions and difficulty following group instructions.
The Team: Maria, a Registered Behavior Technician (RBT), and her supervising Board Certified Behavior Analyst (BCBA).
Assessment Goal: To conduct a functional assessment to determine the root cause of Alex's maladaptive behaviors.
Initial Observations and Data Collection:
Maria organized specific tools including Antecedent-Behavior-Consequence (ABC) charts and data sheets.
She collected data on the frequency and duration of Alex's behaviors.
Observation focused on transitions between activities specifically.
Patterns noted: Tantrums occurred more frequently after non-preferred group activities. Alex remained calmer during preferred activities and non-structured free time.
Functional Analysis Component:
The team systematically changed how transitions occurred to test behavioral responses.
Condition A: No warning provided before starting a new activity.
Condition B: Multiple warnings provided before a transition happened.
Results: Alex’s tantrums increased significantly when transitions were sudden and occurred without warning.
Findings and Outcome:
The BCBA determined the behavior was maintained by the functions of avoidance (of non-preferred activities) or escape (from things he did not like).
The BCBA used this data to create an individualized intervention plan for Alex.
Overview of Functional Assessment Procedures
Fundamental Definition: Functional assessments are procedures used to identify the reasons behind challenging behaviors by evaluating environmental variables and consequences.
Purpose: They provide the evidence necessary to design effective, individualized behavior intervention plans (BIPs).
Three Primary Types of Functional Assessments:
Indirect Assessments: These involve gathering information without observing the behavior directly, such as interviewing caregivers and teachers.
Descriptive Assessments: These involve observing the behavior in the natural environment and collecting data, such as ABC (Antecedent-Behavior-Consequence) data.
Functional Analysis (FA): This involves the systematic testing and manipulation of different environmental variables to determine their effect on the behavior.
The RBT Role:
Collecting session data and documenting environmental variables.
Assisting in controlled conditions during functional analyses.
Contributing observations for the accurate identification of behavioral functions.
Collaborating with supervisors by following guidelines, documenting objectively, and respecting client confidentiality.
Preparing for a Functional Assessment
Understanding Objectives: Before starting, the RBT must understand the purpose and scope. This includes reviewing goals with the BCBA to clarify which behaviors to target. For example, if the goal is to determine the cause of self-injury, the RBT focuses on triggers and consequences related to that specific behavior.
Gathering Materials: Necessary tools must be organized beforehand to streamline the process and minimize disruptions. These may include:
ABC charts (including prefilled templates for efficiency).
Data sheets.
Timers for measuring duration.
Video equipment (where permitted).
Observing the Environment: RBTs must identify environmental triggers, including:
Noise levels (e.g., loud noises).
The physical setup of the room.
The presence or absence of peers.
Specific instructions given to the client.
Communication with Supervisors: RBTs should ask clarifying questions to avoid misunderstandings, such as whether to focus on a specific activity or the entire duration of a session.
Data Collection Techniques in Functional Assessment
Frequency: This is the measurement of how often a specific behavior occurs (e.g., how many times a child yells during a transition).
Duration: This is the measurement of how long a behavior lasts (e.g., the length of a tantrum in minutes or seconds).
Consistency and Accuracy:
Preparing tools ahead of time, such as digital timers or premade checklists, increases precision.
Strategies for overcoming distractions include clarifying ambiguous definitions with the BCBA or pausing an activity temporarily to ensure notes are recorded accurately.
Behavioral Variables: RBTs document variables that might influence behavior, such as peer interactions or audiological environment changes. For instance, an increase in noise levels might correlate with an increase in challenging behaviors.
Technology in Data Collection: Tools such as data collection apps and digital timers can be used to streamline the process and reduce the frequency of manual recording errors.
The Components of ABC Data
Antecedent: What happens immediately before the behavior. Examples include a specific demand from a teacher, a change in the current activity, or an environmental noise.
Behavior: The client's action that is both observable and measurable. Descriptions must be objective (e.g., writing "client yelled and stomped feet" instead of "client was upset").
Consequence: What happens immediately after the behavior. This includes reactions from others (e.g., a teacher removing a task) or changes in the environment (e.g., being allowed a break).
Case Examples of Behavioral Functions
Example 1: Sensory/Automatic Reinforcement:
Scenario: A client is left alone during quiet reading time.
Behavior: The client flaps their hands and vocalizes loudly.
Outcome: The behavior continues uninterrupted. This suggests the behavior is maintained by sensory stimulation.
Example 2: Escape:
Scenario: A client is asked to clean up toys.
Behavior: The client cries loudly and throws a toy.
Outcome: The teacher allows the client to leave the cleanup area. This indicates the function is escape from a demand.
Example 3: Attention:
Scenario: A client plays alone with a preferred toy.
Behavior: The client hits a sibling who is walking by.
Outcome: The sibling shouts and runs to tell the mother. This suggests the behavior is reinforced by gaining attention.
Example 4: Access to Tangibles:
Scenario: A client is told they cannot have a preferred toy.
Behavior: The client screams, kicks, and reaches for the toy.
Outcome: The teacher gives the client the toy to calm them down. This indicates the behavior is maintained by access to a tangible item.
Best Practices and Key Takeaways for RBTs
Understand Goals: Clarify objectives and review instructions with the BCBA before starting any assessment tasks.
Prepare Thoroughly: Familiarize yourself with the client’s environment and potential triggers. Ensure all physical or digital data tools are ready.
Collect Accurate Data: Use ABC charts and timers consistently. Focus on objective, specific descriptions of actions.
Summarize Effectively: Organize raw data into clear, identifiable patterns. Use visual aids where appropriate. All findings should be reviewed with the BCBA for accuracy.
Professional Impact: The RBT serves as the "eyes and ears" of the BCBA. Their work in observing natural environments and recording patterns is foundational to crafting interventions that improve a client’s quality of life.