What's tested on Domain F
- Functional Behavior Assessment (FBA): purpose, components, and decision flow
- Indirect assessment: interviews, rating scales (FAST, MAS, QABF), record reviews
- Descriptive assessment: ABC recording, scatterplots, narrative observation
- Experimental functional analysis (FA): standard Iwata conditions (alone, attention, demand, play/control), and brief / latency-based variants
- Preference and reinforcer assessments: paired-stimulus, multiple-stimulus-with-replacement, multiple-stimulus-without-replacement, free-operant
- Identifying behavior function: social positive, social negative, automatic positive, automatic negative
Why this domain matters
Function determines treatment. A behavior maintained by escape needs a different intervention than the same topography maintained by attention, and prescribing the wrong one wastes weeks of clinical time. The exam tests whether you can read a scenario and identify the function. In the field, this is the skill that distinguishes a competent BCBA from one whose programs don't work.
How to study Domain F for the BCBA exam
- Memorize the four functions and one prototype scenario for each. "Automatic" is the most commonly missed because it has no social mediator.
- Know the FA conditions cold: what each tests, what differential responding in each condition means.
- Don't confuse a preference assessment with a reinforcer assessment. A preferred item isn't always a reinforcer; you have to test it.
- Practice reading scatterplots and ABC data for patterns. Visual analysis is often the give-away on exam items.
Frequently asked questions
How many BCBA exam questions are on behavior assessment?
Twenty-three questions out of 175, or 13% of the exam. The second-largest content domain.
What's the difference between an FBA and a functional analysis?
An FBA is the umbrella process for identifying behavior function and can include indirect, descriptive, and experimental components. A functional analysis (FA) is the experimental component specifically: manipulating environmental conditions to demonstrate function. Every FA is part of an FBA; not every FBA includes an FA.
Practice Domain F questions
Scenario-based BCBA practice questions for Behavior Assessment, with rationales for every option. The free tier includes a curated set of practice questions from across the exam; Core and Pro unlock the full bank across all nine domains.
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