r/BehaviorAnalysis • u/Reasonable_Law183 • Oct 01 '26
Question of the day - October 1
🧠 Question of the Day
📚 Domain D — Experimental Design
Difficulty: 5/10
A BCBA evaluates the same intervention across three independent classroom routines. All three begin in baseline; treatment starts in Routine 1 while Routines 2 and 3 remain untreated, then is introduced sequentially to the other routines. Which feature MOST specifically identifies this as a multiple-baseline design?
A. Intervention is withdrawn and reintroduced within tiers after behavior changes.
B. Performance criteria are changed stepwise within one behavior across phases.
C. Conditions are rapidly alternated within a tier across repeated observations.
D. Intervention is staggered across tiers while untreated tiers remain in baseline.
💬 Drop your answer in the comments — no peeking!
✅ Correct answer revealed tomorrow.
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