Technically, the number of responses required for delivery of the reinforcer under an FI-50 schedule of reinforcement is the same as that under a(n) __________ schedule.
a. FR-1
b. FR-50
c. VR-1
d. VR-50
a. FR-1
Answer feedback: Although the fixed-interval category of schedules of reinforcement is time-based, reinforcement still requires a response—namely, the first response that occurs after the completion of the fixed interval of time. Technically, no other responses are required. For this reason, the number of required responses is the same as that for an FR-1 schedule (also known as a CRF schedule). A VR-1 schedule is meaningless, as there would not be a variable number of responses under such a schedule.
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