When a VR schedule of reinforcement is in place, the reinforcer occurs after the
a. final response in a fixed number of responses (for example, 5).
b. final response in a variable number of responses. The schedule is designated by the average number of responses that is required (for example, 5 responses).
c. first response after a variable length of time has transpired. The schedule is designated by the average length of time that is required (for example, 5 minutes).
d. first response after a constant interval of time (for example, 5 minutes) has occurred.
b. final response in a variable number of responses. The schedule is designated by the average number of responses that is required (for example, 5 responses).
Answer feedback: A variable-ratio (VR) schedule is defined as a sequence of variable response requirements. When one requirement is completed, the reinforcer is delivered, and a new requirement is implemented. The average number of responses required for reinforcement is the schedule’s value (for example, VR-5).
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