A teacher provides positive reinforcement every two times Katherine waits until she is called on to answer a question. What type of reinforcement schedule is the teacher using?

a. Fixed ratio
b. Variable ratio
c. Fixed interval
d. Variable interval

Answer: a. Fixed ratio

Psychology

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compression of morbidity. progeria. dependency ratio. senescence.

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Evidence-based therapies should be based on ____

a. client culture, values, and beliefs b. managed care provisions c. meta-analysis d. epidemiological studies

Psychology