Schedules of Reinforcement

Example:

Name the schedule:

Arjun gets a sticker for the first correct response after a two-minute interval has passed.

Cristina gets to pick a prize after an average of four homework papers are turned in.

One star is earned every three times Juan raises his hand.

Kiana gets five minutes of iPad if they answer correctly at the end of an interval, which lasts five minutes on average.