Reinforcement Schedules Kelli Snyder and Paige Kunkel An example of a fixed-ratio schedule is when you buy nine smoothies, you get the tenth for free. The reinforcer is a free smoothie. An example of a variable-ratio schedule is playing a game at the fair to win a stuffed animal. The stuffed animal is the reinforcer. An example of a fixed-interval schedule is watching your favorite T.V. Show everyday at 6 p.m. Your favorite T.V. show is the reinforcer. An example of a variable-interval schedule is fishing. You do not know if or when you will catch a fish. The reinforcer is the fish.