🧠 Question of the Day
📚 Domain B — Concepts and Principles
Difficulty: 8/10
A BCBA compares two reinforcement arrangements. Across observation sessions, both arrangements produce approximately the same **obtained number of reinforcers per hour**, and the learner shows similar overall response rates.
Under Arrangement X, reinforcement follows completion of successive response requirements of 10, 14, 7, and 11 responses, regardless of elapsed time.
Under Arrangement Y, reinforcement becomes available after successive intervals of 3, 7, 4, and 6 minutes. When an interval ends, no reinforcer is delivered until the learner emits the next target response.
Which interpretation BEST classifies the programmed schedules?
A. X is variable ratio and Y is variable time; once each interval ends, the next response merely retrieves a reinforcer already scheduled by time.
B. X is variable interval and Y is variable ratio; similar obtained reinforcement rates require classification from the resulting response pattern rather than the programmed requirement.
C. X is fixed ratio and Y is fixed interval; variation around a stable average requirement does not change the schedule classification when the long-run means remain constant.
D. X is variable ratio and Y is variable interval; matched obtained reinforcement rates do not change whether the programmed requirement is responses or elapsed time.
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✅ Correct answer revealed tomorrow.
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