Domain D · 7% of Exam (13 Scored Questions)

Domain D: Experimental Design Practice Questions

Domain D covers single-case experimental designs: reversal (ABAB), multiple baseline across subjects/settings/behaviors, alternating treatments (multi-element), changing criterion, component analysis, and parametric analysis.

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Sample Domain D Questions

Solve these representative scenarios and examine why each distractor is incorrect:

Sample Question 01Domain D: Experimental DesignComponent vs Parametric Analysis

A BCBA wishes to determine whether a treatment package consisting of an extinction procedure, differential reinforcement, and a visual schedule can maintain behavior reduction without the visual schedule. The BCBA is conducting a:

Select an option to test your answer

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Core Concepts Tested in Domain D

✓Reversal / Withdrawal Designs (ABAB, BAB, Multiple Reversals)
✓Multiple Baseline Designs (Across Behaviors, Settings, Subjects)
✓Alternating Treatments Design (Multi-element, Simultaneous Treatments)
✓Changing Criterion Design
✓Internal vs. External Validity, Social Validity
✓Component Analysis vs. Parametric Analysis

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Common Traps & Distractors in Domain D

• Using a reversal design for irreversible behaviors (e.g., learning to ride a bike, academic reading skills) or dangerous self-injurious behavior.
• Confusing component analysis (which active ingredient works) with parametric analysis (how much of the ingredient is optimal).