Reinforcement Schedules

Question 1

fixed-ratio (FR)

Answer 1

reinforcer occurs each time a fixed number of responses of a particular type are emitted

Question 2

variable-ratio (VR)

Answer 2

reinforcers occurs after a certain number of a particular response and the number of responses required for each reinforcer changes unpredictably from one reinforcer to the next.

Question 3

fixed-interval (FI)

Answer 3

reinforcer is presented following the first instance of a specific response after a fixed period of time. The individual must engage in the behavior after reinforcement has become available because of the passage of time

Question 4

variable-interval (VI)

Answer 4

reinforcer is presented following the first instance of a specific response after an interval of time and the length of the interval changes unpredictably

Question 5

fixed-duration (FD)

Answer 5

reinforcer is presented only if a behavior occurs continuously for a fixed period of time

Question 6

variable-duration (VD)

Answer 6

reinforcer is only presented if a behavior occurs continuously for a fixed period of time and the interval of time from reinforcer to reinforcer varies unpredictably