Airline frequent flyer programs that reward customers with a free flight after every 50,000 miles of travel illustrate the use of a schedule of reinforcement.

a. fixed-interval

b. fixed-ratio

c. variable-ratio

d. variable-interval

Airline frequent flyer programs that reward customers with a free flight after every 50,000 miles of travel illustrate the use of a fixed-ratio schedule of reinforcement.

Fixed-ration schedule is when the reinforcement should be delivered after a fixed amount of correct responses. In this case, the fixed reinforcement is for every 50,000 miles of travel the person receives a free flight. This is set amount of miles that needs to be earned prior to receiving something in exchange.

Fixed interval

Explanation:

Schedule of reinforcement is a set of rule established to guide in responding to actions or delivering rewards.

Fixed interval of reinforcement is a form of reward scheduled to take place after attaining a set period of time and repeatedly on a fixed interval of time.It permits a regular rate of response at a greater intervals.

It attracts high response towards the end of the interval but slow response after reward is delivered.

there was no passage listed but using the process of elimination i'd say it was d. the high economy would do the opposite. i don't see how low prices would affect it. high unemployment is possible but i feel d is the better answer.