Seven-year-old vinny was a poor sleeper. he had a bad habit of getting up a few times every night, and waking his parents every time, which left the whole family sleep deprived. vinny’s parents decided to award vinny with a sticker every time he slept through the night. after five stickers, vinny will be rewarded with a new dvd of his choice. vinny’s parents are employing the schedule of reinforcement to modify vinny’s sleeping behavior.
a.)variable ratio
b.) fixed ratio