All of the following terms belong together EXCEPT for which one?

Parents and employers must determine when and under what conditions children will be rewarded and employees will be paid. In both cases, they must select ____.?

a. ?applied psychology principles b. ?schedules of reinforcement c. ?rates of responding d. ?only continuous schedules e. ?extinction schedules

The critical value for r depends on _____

a. alpha c. both a and b b. degrees of freedom d. none of these