The broken vending machine in Cathy's office dispenses sodas inconsistently. Sometimes Cathy gets a soda after putting in two quarters, but sometimes she only gets a soda after putting in five or six quarters
In operant conditioning terms, Cathy is being reinforced on a ________________ schedule.
A) fixed-ratio
B) fixed-interval
C) variable-ratio
D) variable-interval
Answer: C
Rationale: In a variable-ratio schedule, the number of responses required to receive reinforcement varies according to an average .
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