Justin is going through his own personal program of endurance training. In the first two weeks, he rewards himself with a quarter every day he runs a complete mile. In the next two weeks, he gives himself a quarter for every two consecutive miles run. Next, he gives himself a quarter for every three consecutive miles, and so on, increasing every two weeks the number of miles he must run for each quarter. By the end of the fall semester, Justin can run 8 consecutive miles a day. This program is very much like which single-case research design?

Question

Quizplus · Accepted Answer

Justin's program, where the criterion for reward changes progressively over time, aligns with a changing criterion design. This design involves altering the criteria for reinforcement or reward as the subject meets each new criterion, which is exactly what Justin does with his running and reward system.

Justin Is Going Through His Own Personal Program of Endurance