Forgetting - Interference Flashcards
Interference
When one piece of information gets in the way of the retrieval of another piece of information because they’re similar.
Proactive interference
when old information interferes with the retrieval of new information
retroactive interference
When new information interferes with the retrieval of old information.
Retroactive examples
- being asked to give your old phone number for a document but being unable to recall it due to the interference of your new phone number.
Proactive examples
- calling your new girlfriend by your old girlfriends name
- using french word “chien” instead of Spanish word “Perro” for dog due to prior learning of french.
Underwood (1957) - proactive
The more word lists participants had to learn, the worse their recall (20% for ten lists, compared to 70% for one list) - an example of proactive interference.
McGeoch and McDonald (1931) - similar memories
-participants had to learn a list of words and were given a 10 minute interval to do so
-they then learned a new list (A= synonyms of original list - 12% recall of A, B= nonsense syllables - 26% recall of A, C= numbers - 36% recall of A)
(this shows that interference is strongest when memories are similar.)
Evaluation negatives
- no actual explanation of why interference occurs as it only explains how and doesn’t include explanations as to the cognitive processes that take place
- low ecological validity and mundane realism due to the unrealistic scenarios tested and the lab environment