The learning occurs before the response in classical conditioning and after the response in operant conditioning. You learn by association in classical conditioning and by reinforcement or punishment in operant conditioning.
In classical conditioning, learning refers to involuntary responses that result from experiences that occur before a response. You learn to associate two different stimuli. No behavior is involved.
Skinner is regarded as the father of Operant Conditioning, but his work was based on Thorndike's (1905) law of effect. OC, a.k.a. instrumental conditioning. In operant conditioning, learning refers to changes in behavior as a result of experiences that occur after a response.
Refers to the unexpected recurrence of a conditioned response after it has shown extinction. Spontaneous recovery is usually short-lived and a weakened version of the conditioned response. A term that refers to showing a conditioned response to a stimulus that differs from, but is similar to, the conditioned stimulus.