Question

Underwood (1948) found that retroactive interference is reduced after a delay, much as Pavlov (1927) found that previously extinguished conditioned responses re-emerge following a delay. This phenomenon is called

Answer 1

Retroactive interference reduction after a delay and the re-emergence of extinguished conditioned responses is called spontaneous recovery, a concept identified by Pavlov.

Step-by-step explanation:

The phenomenon where retroactive interference is reduced after a delay, and previously extinguished conditioned responses re-emerge following a rest period, is known as spontaneous recovery.

This concept was first identified by Pavlov in his classical conditioning experiments with dogs, where a conditioned response that had been diminished or extinguished returned when tested after some time had passed. Similarly, Underwood (1948) found that information that could not be recalled due to retroactive interference becomes more accessible over time.