In operant conditioning, a variable-ratio schedule is a schedule of reinforcement where a response is reinforced after an unpredictable number of responses. 1 This schedule creates a steady, high rate of responding. Gambling and lottery games are good examples of a reward based on a variable ratio schedule.
Why is variable interval schedule important?
Variable-interval schedules occur when a response is rewarded after an unpredictable amount of time has passed. This schedule produces a slow, steady rate of response.
How does a variable interval schedule affect behavior?
A variable interval schedule delivers the reinforcer after a variable amount of time interval has passed since the previous reinforcement. This schedule usually generates a steady rate of performance due to the uncertainty about the time of the next reward and is thought to be habit-forming3.
What is a variable interval?
In operant conditioning, a variable-interval schedule is a schedule of reinforcement where a response is rewarded after an unpredictable amount of time has passed, which is the opposite of a fixed-interval schedule. This schedule produces a slow, steady rate of response.
What is variable ratio and variable interval?
Variable refers to the number of responses or amount of time between reinforcements, which varies or changes. Interval means the schedule is based on the time between reinforcements, and ratio means the schedule is based on the number of responses between reinforcements.
Which is better variable interval or ratio?
Variable ratio schedules maintain high and steady rates of the desired behavior, and the behavior is very resistant to extinction. Interval schedules involve reinforcing a behavior after an interval of time has passed.
What is variable interval reinforcement schedule?
A Variable Interval Schedule provides reinforcement after random timeintervals. This enforces persistence in the behavior over a long period of time. Becauserewards are dispensed over a period of time, they average out, but within thatperiod rewards are dispensed unevenly (Carpenter, 1974).
Why is variable ratio the best?
Variable ratios
In variable ratio schedules, the individual does not know how many responses he needs to engage in before receiving reinforcement; therefore, he will continue to engage in the target behavior, which creates highly stable rates and makes the behavior highly resistant to extinction.
What is a positive Punisher?
With positive punishment, you add something unpleasant in response to a behavior. For example, a child chews gum in class, which is against the rules. The punishment is the teacher disciplining them in front of the class.
What is an example of fixed interval schedule?
A weekly paycheck is a good example of a fixed-interval schedule. The employee receives reinforcement every seven days, which may result in a higher response rate as payday approaches. Dental exams also take place on a fixed-interval schedule.
What is a VR3 schedule of reinforcement?
Variable ratio reinforcement (VR) schedules deliver reinforcement after a random number of responses (based upon a predetermined average) Example: VR3 = on average, every third response is reinforced. Lab example: VR10 = on average, a rat is reinforced for each 10 bar presses.
