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Reinforcement Schedules

Reinforcement Schedules. Match the type of reinforcement schedule to the example that best defines it. Reinforcement Schedule Review. RATIOS = RESPONSES Fixed Ratio (FR) – Reinforcement occurs after a fixed number of responses Results in a burst-pause-burst-pause pattern

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Reinforcement Schedules

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  1. Reinforcement Schedules Match the type of reinforcement schedule to the example that best defines it.

  2. Reinforcement Schedule Review RATIOS = RESPONSES • Fixed Ratio (FR) – Reinforcement occurs after a fixed number of responses • Results in a burst-pause-burst-pause pattern • Variable Ratio (VR) – Reinforcement occurs after an average number of responses. Number of responses required for reinforcement is unpredictable. • Results in high, steady rates of responding with almost no pauses

  3. Reinforcement Schedule Review INTERVALS = TIME • Fixed Interval (FI) – A reinforcer is delivered for the first response after a preset time interval has elapsed. • Number of responses tends to increase as the time for the next reinforcer draws near then long pause occurs after reinforcement. • Variable Interval (VI) – A reinforcer is delivered for the first response after an average time interval has elapsed. The interval is unpredictable. • Number of responses will be moderately steady because reinforcement could occur at any time.

  4. Example 1 A business that advertises that it will change your oil in 20 minutes offers you a free oil change after you have had your oil changed 5 times at their business.

  5. Example 1 ANSWER • FIXED RATIO (FR)

  6. Example 2 Although farmers put out about the same amount of labor each year, sometimes they sell their grain at harvest time, sometimes in January, and sometimes in late March.

  7. Example 2 ANSWER • VARIABLE INTERVAL (VI)

  8. Example 3 You are fly fishing in a great trout stream. Sometimes you catch a fish after only 4 or 5 casts; sometimes it takes 10 or 20 casts.

  9. Example 3 ANSWER • VARIABLE RATIO (VR)

  10. Example 4 A bank employee is given a bonus of a $30 restaurant coupon for every 4 hours of overtime he volunteers to work.

  11. Example 4 ANSWER • FIXED INTERVAL (FI)

  12. Example 5 A young child demands a candy bar each time she is in the checkout line at the grocery store. Sometimes the parent gives her one and sometime he doesn’t.

  13. Example 5 ANSWER • VARIABLE RATIO (VR)

  14. Example 6 A piano teacher gives a 6-year-old student a sticker for each song he plays well.

  15. Example 6 ANSWER • FIXED RATIO (FR)

  16. Example 7 You are still fishing from a dock. You sit with your line in the water and wait for the fish to strike. Sometimes it takes only 20 minutes, and sometimes it takes an hour or more.

  17. Example 7 ANSWER • VARIABLE INTERVAL (VI)

  18. Example 8 You do piece work in a factory. For every 3 sleeves you sew on garments, you get $0.50.

  19. Example 8 ANSWER • FIXED RATIO (FR)

  20. Example 9 For each half day that a second grader pays attention and works well, the teacher gives her a “Good Behavior” dollar that she can trade in at the end of the week for desired objects from the store.

  21. Example 9 ANSWER • FIXED INTERVAL (FI)

  22. Example 10 A vacuum cleaner salesperson does numerous presentations in people’s homes and gets paid a bonus each time he or she sells a vacuum. Sometimes the salesperson does 5 presentations before a customer buys a vacuum, sometimes 2 customers in a row purchase the product.

  23. Example 10 ANSWER • VARIABLE RATIO (VR)

  24. Example 11 Your paycheck arrives on the 1st and the 15th of every month.

  25. Example 11 ANSWER • FIXED INTERVAL (FI)

  26. Example 12 Buying state lottery tickets & winning.

  27. Example 12 ANSWER • Variable Ratio (VR)

  28. Example 13 A hotel maid may take a 15-minute break only after having cleaned three rooms.

  29. Example 13 ANSWER • Fixed Ratio (FR)

  30. Example 14 Watching and seeing shooting stars on a dark night.

  31. Example 14 ANSWER • Variable Interval (VI)

  32. Example 15 A teenager receives an allowance every Saturday.

  33. Example 15 ANSWER • Fixed Interval (FI)

  34. Example 16 Checking the front porch for a newspaper when the delivery person is extremely unpredictable.

  35. Example 16 ANSWER • Variable Interval (VI)

  36. Example 17 A professional baseball player gets a hit approximately every third time at bat.

  37. Example 17 ANSWER • Variable Ratio (VR)

  38. Example 18 Checking the oven to see if chocolate chip cookies are done, when the baking time is known.

  39. Example 18 ANSWER • Fixed Interval (FI)

  40. Example 19 A blueberry picker receives $1 after filling 3 pint boxes.

  41. Example 19 ANSWER • Fixed Ratio (FR)

  42. Example 20 A charitable organization makes an average of ten phone calls for every donation it receives.

  43. Example 20 ANSWER • Variable Ratio (VR)

  44. Example 21 Calling a garage mechanic to see if your car is fixed yet.

  45. Example 21 ANSWER • Variable Interval (VI)

  46. Example 22 A student’s final grade improves one level for every three book reviews submitted.

  47. Example 22 ANSWER • Fixed Ratio (FR)

  48. Example 23 Going to the cafeteria to see if the next meal is available.

  49. Example 23 ANSWER • Fixed Interval (FI)

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