What Is the 5th Edition Task List?
The 5th Edition Task List is the official content outline published by the Behavior Analyst Certification Board (BACB) that defines the knowledge and skills required for BCBA certification. Released in 2017 and serving as the basis for the current BCBA exam, it replaced the 4th Edition Task List and introduced several structural and content changes. Every BCBA candidate must be thoroughly familiar with this document, as it defines what will be tested on the exam.
The Task List is organized into two main sections: Foundations and Applications. Within these sections are multiple content areas, each containing specific task items that describe what a competent behavior analyst should know and be able to do.
Section 1: Foundations
The Foundations section encompasses the conceptual and scientific basis of behavior analysis. It is weighted more heavily on the exam and covers the theoretical knowledge that underlies clinical practice.
A. Philosophical Underpinnings
This area covers the philosophical assumptions that define behavior analysis as a natural science. Key topics include determinism (the assumption that behavior is lawful and orderly), empiricism (reliance on observable and measurable evidence), parsimony (preferring simple explanations over complex ones), and philosophical doubt (maintaining skepticism toward claims). You should understand radical behaviorism as the philosophy of the science of behavior analysis, and how it differs from methodological behaviorism.
B. Concepts and Principles
This is one of the largest and most heavily tested areas. It includes respondent conditioning (unconditioned and conditioned stimuli and responses, extinction, higher-order conditioning), operant conditioning (reinforcement, punishment, extinction, schedules of reinforcement), verbal behavior (Skinner's analysis of verbal operants including mand, tact, echoic, intraverbal, textual, and transcription), motivating operations (establishing operations and abolishing operations), and stimulus control (discrimination, generalization, stimulus equivalence).
Master these concepts deeply. The exam will not simply ask you to define terms but will present scenarios requiring you to identify which principle is at work.
C. Measurement, Data Display, and Interpretation
This area covers the technical aspects of behavioral measurement. Topics include continuous measurement procedures (frequency, rate, duration, latency, interresponse time), discontinuous measurement (partial interval, whole interval, momentary time sampling), and derived measures (percentage, trials to criterion, celeration). Data display topics include line graphs, cumulative records, bar graphs, and scatterplots. Interpretation involves visual analysis of graphed data, including level, trend, and variability.
D. Experimental Design
Behavior analysis relies on single-subject experimental designs to demonstrate functional relationships. Topics include reversal/withdrawal designs (ABAB), multiple baseline designs (across subjects, behaviors, or settings), multielement/alternating treatments designs, changing criterion designs, and the logic of experimental control through replication. Understand internal and external validity, and know the threats to each.
Section 2: Applications
The Applications section covers the clinical and practical skills needed to implement behavior-analytic services effectively.
E. Ethics
Ethics is a substantial portion of the exam. This area covers the BACB Professional and Ethical Compliance Code, which addresses responsible conduct, the behavior analyst's responsibility to clients, confidentiality, fees and financial arrangements, the behavior analyst as teacher and supervisor, the behavior analyst and research, and the behavior analyst's ethical responsibility to the profession. Know the specific code elements and be able to apply them to complex scenarios where multiple ethical considerations intersect.
F. Behavior Assessment
This area covers the methods used to identify target behaviors and their controlling variables. Topics include indirect assessment methods (interviews, rating scales, checklists), direct assessment through descriptive analysis (ABC recording, scatterplots), and experimental analysis (functional analysis). You must understand how to select the appropriate assessment method, interpret assessment results, and use findings to inform intervention.
G. Behavior-Change Procedures
This is where the clinical "how to" lives. Topics include positive and negative reinforcement, punishment, extinction, differential reinforcement (DRA, DRI, DRL, DRO, DRH), stimulus-based procedures (antecedent interventions, noncontingent reinforcement), shaping, chaining (forward, backward, total task), prompting (response prompts and stimulus prompts), prompt fading, modeling, and behavioral skills training. Each of these topics can generate multiple exam questions.
H. Selecting and Implementing Interventions
This area bridges assessment and treatment. Topics include prioritizing target behaviors, selecting socially valid goals, choosing interventions based on assessment results, considering least restrictive alternatives, monitoring progress, and modifying interventions based on data. The emphasis is on data-driven decision-making and evidence-based practice.
I. Personnel Supervision and Management
BCBAs supervise RBTs, BCaBAs, and trainees. This area covers establishing effective supervision relationships, providing performance feedback, training staff in behavior-analytic procedures, evaluating supervisee performance, and addressing ethical issues in supervision. Organizational behavior management concepts such as task clarification, performance monitoring, and feedback systems are also included.
Study Strategy for the Task List
Download the official Task List from the BACB website and use it as your study roadmap. For each task item, ensure you can define the concept, recognize it in a clinical scenario, and apply it to a novel situation. Do not simply memorize definitions. The exam is designed to test application, not rote recall.
Cross-reference the Task List with your coursework materials, Cooper, Heron, and Heward's "Applied Behavior Analysis" textbook, and practice exams. Track which areas you find most challenging and dedicate additional study time to those sections.