Final answer:
In psychology, there are several types of reinforcement schedules. The fixed interval schedule produces a scallop-shaped response pattern and might resemble fish scales. In this schedule, reinforcement is delivered after a set amount of time.
Step-by-step explanation:
In psychology, a schedule of reinforcement refers to the pattern in which reinforcement is delivered for a behavior. There are several types of reinforcement schedules, including fixed ratio, variable ratio, fixed interval, and variable interval. It seems that the student is asking about the schedule of reinforcement that looks like fish scales. While there is no specific schedule of reinforcement that resembles fish scales, the fixed interval schedule produces a scallop-shaped response pattern, which might be what the student is referring to. In this schedule, reinforcement is delivered after a set amount of time, resulting in a pause in responding followed by an increase in response rate.