What Is the 5th Edition Task List?
The 5th Edition Task List is the official document published by the Behavior Analyst Certification Board (BACB) that defines every competency tested on the BCBA exam. It serves as the blueprint for the exam, and every question you encounter is tied to one or more tasks on this list. Understanding the Task List is not optional; it is the foundation of effective exam preparation.
The Task List is organized into major sections that cover the full scope of behavior-analytic practice. Each section contains specific tasks that describe what a competent behavior analyst should know and be able to do.
Section A: Philosophical Underpinnings
This section covers the foundational philosophy of behavior analysis. You need to understand and be able to apply the following:
- Determinism: The assumption that behavior is lawful and influenced by environmental variables
- Empiricism: Knowledge is based on observation and data, not authority or tradition
- Parsimony: The simplest explanation consistent with the evidence should be preferred
- Pragmatism: The value of knowledge is measured by its practical application
- Radical behaviorism: Skinner's philosophy that acknowledges private events as behavior but analyzes them using the same principles as public behavior
The exam tests this section through questions about the assumptions underlying behavior analysis and how these assumptions guide practice decisions. You may be asked to identify which philosophical principle supports a given approach to assessment or treatment.
Section B: Concepts and Principles
This is one of the most heavily tested sections and covers the core concepts of behavior analysis:
- Respondent conditioning: Unconditioned and conditioned stimuli, unconditioned and conditioned responses, extinction, spontaneous recovery, higher-order conditioning
- Operant conditioning: Reinforcement (positive and negative), punishment (positive and negative), extinction, automatic reinforcement
- Schedules of reinforcement: Fixed ratio, variable ratio, fixed interval, variable interval, and compound schedules
- Verbal behavior: Mand, tact, echoic, intraverbal, textual, transcription, and autoclitic
- Motivating operations: Establishing operations, abolishing operations, conditioned and unconditioned MOs
- Stimulus control: Discriminative stimuli, stimulus generalization, stimulus equivalence
Expect many exam questions from this section. You need to know definitions precisely and be able to identify concepts in applied examples. Confusing similar concepts (such as negative reinforcement with punishment) is one of the most common errors.
Study Priority for Concepts and Principles
Allocate significant study time to this section. Focus on being able to identify each concept in a novel scenario, not just reciting definitions. Create flashcards with scenario-based examples on the front and the concept on the back.
Section C: Measurement, Data Display, and Interpretation
This section addresses how behavior analysts measure and analyze behavior:
- Measurement procedures: Frequency, rate, duration, latency, interresponse time, percentage, trials to criterion, whole and partial interval recording, momentary time sampling
- Data display: Equal-interval line graphs, bar graphs, cumulative records, scatterplots
- Interobserver agreement (IOA): Total count IOA, mean count per interval, exact agreement, trial-by-trial, interval-by-interval, scored-interval, unscored-interval
The exam tests your ability to select the appropriate measurement procedure for a given behavior and interpret data displays correctly. You should know the advantages and limitations of each measurement type and be able to calculate IOA using different methods.
Section D: Experimental Design
This section covers research methodology relevant to behavior analysis:
- Single-subject designs: Reversal (ABAB), multiple baseline (across behaviors, settings, participants), alternating treatments, changing criterion, multielement
- Internal and external validity: Threats to validity, how to control for confounds
- Visual analysis: Level, trend, variability, immediacy of effect, overlap, consistency of data patterns
Know when to use each design and what each design can and cannot demonstrate. Be able to identify designs from graphed data and evaluate whether a functional relation has been demonstrated.
Section E: Ethics
Ethics questions draw from the BACB Ethics Code for Behavior Analysts. Key areas include:
- Responsible conduct: Competence boundaries, integrity, professional relationships
- Client-centered responsibilities: Informed consent, right to effective treatment, confidentiality, least restrictive procedures
- Supervision: Requirements, ongoing evaluation, appropriate delegation
- Public statements and advertising: Accurate representation, testimonials, social media
Ethics questions frequently present scenarios where you must determine the correct course of action. Memorizing the Ethics Code is essential, but you also need to practice applying it to complex situations where multiple ethical principles may conflict.
Section F: Behavior Assessment
This section covers how to assess behavior before designing interventions:
- Indirect assessment: Interviews, checklists, rating scales
- Direct observation: ABC data collection, descriptive assessment
- Functional analysis: Experimental manipulation of antecedents and consequences to identify maintaining variables
- Selecting assessment methods: When to use each type, advantages and limitations
Section G: Behavior-Change Procedures
This section covers intervention strategies:
- Reinforcement-based procedures: Differential reinforcement (DRA, DRO, DRI, DRL), noncontingent reinforcement, high-probability instructional sequences
- Skill acquisition: Shaping, chaining (forward, backward, total task), prompting and prompt fading, modeling, discrete trial training, naturalistic teaching
- Generalization and maintenance: Programming for generalization, thinning reinforcement schedules
- Group contingencies: Independent, dependent, interdependent
Section H: Selecting and Implementing Interventions
This section focuses on clinical decision-making: how to choose the right intervention based on assessment data, client preferences, and contextual factors. It also covers treatment integrity and how to monitor and adjust interventions based on ongoing data.
How to Use the Task List for Studying
Print out the complete 5th Edition Task List and use it as a checklist. As you study each task, rate your confidence level on a scale from 1 to 5. Tasks rated 1 or 2 need the most study time. Revisit this checklist weekly to track your progress and adjust your study plan accordingly. By exam day, every task should be rated at least a 3 or 4.