SCENARIO 19 • an animal might receive a reward for every five response, on average. This means that sometimes the reward can come after three responses, sometimes after seven responses, sometimes...

Determine if it is a fixed ratio, variable ratio schedule, fixed interval schedule, or variable interval schedule.

Extracted text: SCENARIO 19 • an animal might receive a reward for every five response, on average. This means that sometimes the reward can come after three responses, sometimes after seven responses, sometimes after five responses, and so on. The reinforcement schedule will average out to be rewarded for every five response, but the actual delivery schedule will remain completely unpredictable. Fixed Ratio Variable-Ratio Fixed-Interval Variable-Interval