Psychology

Reinforcement Schedules

Fixed-Ratio

http://www.myrecipes.com/recipe/honey-gelato-10000000434637/

Example #1: For every 10 cups of Italian ice you purchase, you receive a complimentary 12 ounce cup of gelato.

Reinforcer: Free cup of gelato

Variable-Ratio

http://www.history.com/news/ask-history/where-did-poker-originate

Example #2: Winning poker.

Reinforcer: Jackpot.

Fixed-Interval

http://blog.ocad.ca/wordpress/vism3b01-fw2011-01/2012/02/playing-with-dolls/

Example #3: Your sister tells you to play with her and her dolls

Reinforcer: Sister

Variable-Interval

http://www.miraclebeautysalonatl.com/servicesdetails-hair-cut.html

Example #4: Going to the salon for a haircut.

Reinforcer: Haircut

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