ABA Exam CoachLessons · F. Behavior Assessment
F.4 · Choosing the right preference assessment
Your client's favorite toy might not change their behavior at all. Let's look at how to pick the right preference assessment, and why a top-ranked item is still only a guess until behavior changes.
Key takeaway
Pick the format that fits the client. Use free-operant if taking items away evokes problem behavior, single-stimulus if the person can't choose between items, MSWO when you need a quick full ranking, and paired-stimulus when you have time and need a strong hierarchy. Preference is a prediction, not proof. An item is a reinforcer only when making it contingent on a response increases that response. Reassess often, because motivating operations shift preference.
Pick the format that fits the client. Use free-operant if taking items away evokes problem behavior, single-stimulus if the person can't choose between items, MSWO when you need a quick full ranking, and paired-stimulus when you have time and need a strong hierarchy. Preference is a prediction, not proof. An item is a reinforcer only when making it contingent on a response increases that response. Reassess often, because motivating operations shift preference.
Members get the full lesson video, notes and a 5-question test
The video walks through the idea, worked examples, the trap people fall into and an exam-style question. The notes and the checkpoint come with it, and your results feed your Where to focus plan.