Question

in interval reinforcement scheduling, the schedule is always based on ______. distance from the last episode of a behavior quantity time

Explanation:

In interval reinforcement scheduling (a concept in psychology, part of Social Science), the schedule is defined by time intervals (e.g., fixed - interval or variable - interval schedules). "Distance from the last episode of a behavior" relates more to ratio schedules (specifically, the number of responses or the "distance" in terms of responses between reinforcements), and "quantity" is not the basis for interval schedules. So the correct basis is time.

Answer:

C. time (assuming the options are labeled as such, with the third option being "time")