A response to frustration that often involves more vigorous, more varied, and repeated efforts of responding is known as

When the oldest generations are given limited roles and circumscribed opportunities in society in order to make way for upcoming generations, the culture is practicing age ______

Fill in the blank with correct word

Perry works at a job where he is paid by commission. For every car Perry sells, he gets 10 percent of the profits. Perry is being reinforced on a ______

a. fixed-ratio schedule c. variable-ratio schedule b. fixed-interval schedule d. variable-interval schedule