In the context of 'Operant Conditioning' proposed by American psychologist B.F. Skinner, which of the following 'Schedules of Reinforcement' is considered the most resistant to extinction and produces the highest rate of response?

Understanding Schedules of Reinforcement

In B.F. Skinner's theory of Operant Conditioning, schedules of reinforcement determine the rate and stability of behavioral responses.

• Variable-Ratio Schedule: Reinforcement is delivered after an unpredictable (variable) number of responses. This schedule produces a high, steady rate of response and is highly resistant to extinction (e.g., gambling/slot machines).
• Continuous Reinforcement: Reinforcing every correct response; leads to rapid learning but quick extinction.
• Fixed-Interval/Ratio Schedules: Predictable timing or counts lead to pauses in responding after reinforcement.

Therefore, the Variable-Ratio Schedule is the most resistant to extinction.