Josh has romantic feelings for the girl who works at the comic bookstore down the street. He likes to go into the store and talk to her. However, he does not know which days of the week she works. So, he visits the store every Sunday, when he is sure she will be there. In this scenario, Josh is operating on a schedule in operant conditioning.

fixed ratio

Explanation:

The fixed ratio schedule in operant conditioning refers to a situation whereby a constant number of responses is involved. The fixed ratio schedules used when an average number of responses have already taken place.

In a fixed schedule, the amount of time is set and unchanging such that the schedule is predictable unlike the variable schedule that changes randomly.

Since Josh visits the store every Sunday, when he is sure she will be there, then he is operating on a fixed schedule in operant conditioning.