Which of the following represents the most significant theoretical difference between Thorndike's Trial and Error theory and Skinner's Operant Conditioning theory?

In Thorndike's Trial and Error theory, the Stimulus comes first followed by the Response (S-R Theory), where the cat makes random attempts to obtain food (stimulus) kept outside the cage.

In contrast, in B.F. Skinner's Operant Conditioning theory, the organism emits a Response voluntarily, which is then followed by a stimulus or reinforcement (R-S Theory).

Key Differences:

• Thorndike (S-R): Environment provides the stimulus; learner makes passive/random responses.
• Skinner (R-S): Learner acts (operant) voluntarily; consequences determine future behavior.