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Introduction to Behavior Function and FBA Adapted from - Kevin J. Filter, Ph.D. Minnesota State University George Sugai, Ph.D. - PBIS Center
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What is a Functional Behavior Assessment Problem solving process Identifies the purpose of the behavior Used to select interventions
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Why do an FBA? All behavior occurs in a context All behavior serves a purpose
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When will change occur? When it is clear that a different response (behavior) will be more effective and efficient AND result in the desired outcome!
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Advantages of an FBA Provides information about students’ behavior Provides data trends and patterns Can be simple or intensive Identifies functions of behaviors Provides data for developing an appropriate and effective behavior plan Increases chance of positive student outcomes
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Functions of Behavior Pos ReinfNeg Reinf
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Behavior Strengthened Increases the likelihood that a behavior will occur.
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Behaviors may result from a combination of functions Escape and sensory are often related to circumstances that are stressful or boring Attention and escape may result from difficult/boring curricular demands and not much attention Functions of Behavior
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When interventions are not matched to the function, we may increase the behavior that we wish to eliminate. Function – Obtain (Attention) – Run after the student, engage in lengthy discussion Function – Escape – Suspension, Removal Class, Stay in from recess Functions - Intervention
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Making the Teacher Angry Brett makes numerous comments about the teacher behind her back. Classmates laugh and teacher gets mad. Why? He’s a delinquent He’s an entertainer Bad apple
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Brett: Other possibilities Long history of getting other students’ attention by insulting people (Function: obtain peer attention) Looking for a quick ticket out of class (Function: escape aversive task) Wants teacher to be flustered and discontinue instruction (Function: Escape aversive task)
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Skipping Class Andrea skips chemistry two or three days per week. Why? She doesn’t care about her education She’s a truant
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Andrea: Other possibilities Has meeting her drug dealer (Function: obtain sensory stimulation) Hates chemistry and doesn’t understand it (Function: escape difficult task) Friends all have free study hall at that time and she meets them at pizza place (Function: obtain peer attention)
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Helping Others Brittany always asks if she can work as a tutor for her peers. Why? She’s a saint She’s responsible
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Brittany: Other possibilities Loves when her peers think that she’s smart (Function: Obtain peer attention) She wants the teacher to notice how helpful she it (Function: Obtain adult attention) She is sick of doing the work that is too easy for her and would rather be challenged by teaching the material to others (Function: Escape task – too easy)
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Function is relevant to ALL behavior Appropriate behavior Studying Walking Playing Inappropriate behavior Fighting Crying Disruptive behavior Function is relevant to ALL people Adults Teachers Administrators Parents Students Elementary High school
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What’s the point? Knowing WHY somebody does something isn’t easy – Social psychology fact: We default to “internal” explanations for the behavior of others Clumsy, deviant, dumb, unmotivated People do things for a PURPOSE – All behaviors have consequences and those consequences affect the behavior in the future WHAT a person does doesn’t tell us WHY they do it
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Form: What does it look like? Function: Why does it occur?
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Continuous process… When are the behaviors most and least likely to occur? Context or routine Setting Events Discriminative Stimuli When the problem behaviors occur, what consequences appear reinforcing?
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FUNCTIONAL BEHAVIORAL ASSESSMENT (FBA) How to determine function of behavior for individual students
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Step 1: Defining behavior Must result in clear, measurable, & objective descriptions of individual, groups, or sequences of related behaviors Any observable or measurable action or act. Observable beginning & end Has measurable dimension(s) Frequency, duration, latency, force, topography, locus
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Non- v. Observable (-)has hyperactivity (+)initiates 5 different tasks within 2 minutes (+)leaves room at least 3 times during a 30 minute lesson
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Which is described in observable terms? Hits with his fist OR Aggressive
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Which is described in observable terms? Hits with his fist OR Is aggressive
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Delinquent OR Takes money from peers
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Delinquent OR Takes money from peers
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Out of seat 55% of time OR Hyperactive
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Out of seat 55% of time OR Hyperactive
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STEP 2: Collecting data on antecedents and consequences Indirect Interview Record review Direct Observation
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Think A-B-C Setting EventAntecedentBehavior Consequence A B C
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Setting EventsTriggering Antecedents Maintaining Consequences Behavior Testable Hypothesis “Basic Unit” Following events that maintain behaviors of concern Preceding events that trigger or occasion Set of related behaviors of concern Events that affect value of maint. conseq.
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Student-level functional approach In what contexts do behaviors occur? – Skipping class example Chemistry (this is a setting event) – Making teacher angry example Only happens with certain teacher (teacher present = setting event, teaching looking away = antecedent) What happens after the behavior – Skipping class example Meets with friends (positive reinforcer) – Making teacher angry example Gets sent to office (negative reinforcer – escape)
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Step 3: Develop interventions (BIP) The purpose of FBA is to develop and implement an effective behavior intervention plan Based on the function of the behavior
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Interventions Many good basic behavior interventions exist and can be used But many depend on knowing current function (reinforcers) Non-contingent reinforcement Differential reinforcement Without conducting an FBA, you can’t be certain whether an intervention will work
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FBA Pros and Cons Pros Recent data suggest that FBA-based interventions are more successful than non- FBA-based interventions Relevant to all 3 tiers Cons Time-intensive Require behavioral expertise Interventions CAN be developed without them
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Recent Research Recent research has compared FBA-based interventions to non-FBA-based interventions and all indicate that FBA-based interventions are superior Ingram et al., 2005 Newcomer and Lewis, 2004 Filter and Horner, 2009
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Big Picture Functional logic applies to – All people, all levels of support, across all settings When you want any behaviors to change in your school, think about – Setting events, antecedents, consequences …and then CHANGE them! The purpose of FBA is to develop and implement an effective behavior intervention plan
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The Process of FBA is not complete until a meaningful change has occurred in the behavior!
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