Five-year-old Tommy is helping get ready for a family reunion at Thanksgiving by polishing the good silverware. If his mother gives him a dime for each 3 pieces he polishes, what kind of reinforcement schedule is she using?
a) fixed-interval
b) fixed-ratio
c) variable-interval
d) variable-ratio
ANS: B, The reinforcement is received after a fixed, or constant number of responses. This is a fixed-ratio schedule of partial reinforcement.
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