Fixed ratio reinforcement


 * Fixed ratio reinforcement (FR) is a schedule of reinforcement where there is reinforcement after a fixed number of responses have been made (maintaining a fixed ratio between response rate and reinforcement rate),


 * Example: FR2 = every second response is reinforced
 * Lab example: FR5 = rat reinforced with food after each 5 bar-presses in a Skinner box.
 * Real-world example: FR10 = Used car dealer gets a $1000 bonus for each 10 cars sold on the lot.

Continuous reinforcement is FR 1 -

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