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Nine-Year-Old Stephanie Is Helping Her Family Get Ready for a Thanksgiving

Question 48

Multiple Choice

Nine-year-old Stephanie is helping her family get ready for a Thanksgiving by polishing the good silverware. If her mother gives Stephanie a quarter for every three pieces she polishes, what kind of reinforcement schedule is her mother using?


A) fixed-interval
B) fixed-ratio
C) variable-interval
D) variable-ratio

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