Forgetting: Interference and Retrieval failure Flashcards
Interference meaning
occurs when two pieces of information conflict with each other resulting in forgetting of one or both memories or distortion in memory.
2 Types of Interference
Proactive and retroactive
Proactive interference
When older memories (already stored) disrupt recall of newer memories
Retroactive interference
When newer memories disrupt recall of older memories
Effects of similarity on forgetting
The degree of forgetting is greater when memories are similar
Retroactive Study - Who?
McGeoch and McDonald
McGeoch and McDonald
Changed the level of similarity between 2 sets of materials. Ppts had to learn a list of 10 words until their recall was 100% accurate. Then learn a new list. Six groups all had varying levels of similarity - Group 6 = control group.
McGeoch and McDonald findings
The most similar material produced the worst recall
Evaluation for Interference
+ Baddeley and Hitch - Rugby players
- Tulving and Psotka - cues
- Lab experiment
Retrieval failure meaning
Form of forgetting when necessary cues to access memories aren’t present.
Cue meaning
A trigger of information that allows us to access a memory
ESP short for and who
Encoding Specificity Principle - Tulving
Encoding Specificity Principle
States that if a cue helps us recall information it has to be present at encoding and retrieval. If cues are different at those stages forgetting occurs
Context dependent forgetting study
Godden and Baddeley - Divers
Godden and Baddeley procedure
Carried out a study on deep sea divers. The divers learnt a list of words either underwater or on land and then had to recall these words either underwater or on land. This created 4 conditions.
Godden and Baddeley findings
Two conditions had matching environmental contexts of learning and recall, the other two did not. In non-matching conditions accurate recall was 40% lower. The external cues available at learning were different from the ones at recall which caused retrieval failure.
State dependent forgetting study
Carter and Cassaday - Drug for Hay fever
Carter and Cassaday study procedure
Procedure-Carter and Cassaday gave drugs for treating hay fever to their participants. The drugs had a mild sedative effect making the participants drowsy. The participants had to learn a list of words and a passage of prose and then recall the information. There were 4 conditions
Carter and Cassaday Findings
In the conditions where there was a mismatch between internal state at learning and recall ,performance was worse. So when cues are absent, then there is more forgetting.
Retrieval Failure AO3
Baddeley and Godden
Recall vs Recognition-Godden and Baddeley replicated their underwater study with a recognition test instead of a recall test. There was no context-dependent effect and performance was the same in all four conditions. The test didn’t require any recall. This is another limitation of context effects as it suggests that the presence/absence of cue only affects memory when you test it in a certain way.