Operant Conditioning and Reinforcement Schedules (7C) Practice Test

In a study of smartphone checking, participants receive a brief, pleasant sound the first time they unlock their phone after a fixed 15-minute period has passed since the last sound (fixed interval 15 min). Which checking pattern is most likely to emerge over days of use?

A customer service center tracks how often employees check an internal knowledge base. Management introduces a rule: the first time an employee checks the knowledge base after a random amount of time has passed (ranging from 5 to 25 minutes) earns a small raffle entry (variable interval schedule). Which outcome is most likely?