Forgetting explanations - Interference + Eval Flashcards
What was forgetting first related to
gradual decay of memory over time
What was forgetting then later related to
interference
what are the two types of interference
- retroactive interference
- proactive interference
what is retroactive interference
new learning interferes with our ability to recall previously held information
retroactive interference - study M + P
Muller and Pilzecker (1900)
Muller and Pilzecker (1900)
- participants remember nonsense syllables for 6 minutes
- retention interval
- then recall list
-other condition - during interval (intervening task takes place - describing three pictures) worse results that other condition
what is proactive interference
previous learning interferes with our ability to recall new learning
proactive interference = U
Underwood (1957)
Underwood (1957)
Participants learn word list
- 10 lists or more
- more they have to learn the less they can recall (20% recalled)
- less to learn - 1 list (70% recalled)
what is the effect of the type of interfering task (McGeoch + McDonald)
- similarity of materials
- participants given 10 adjectives
- group A = another task to remember synonyms of adj
- group B = another task - nonsense numbers
Group B better recall
what is Availability / Accessibility
whether or not interference causes a memory to disappear or if the effects are temporary
available = if its even there to recall
access = if your able to recall at that time
Ceraso (1967)
exposed participants to interference
- tested for availability - recall task
- tested for accessibility - recognition task
- post 24hrs - recognition (good) recall (bad)
- therefore info was temporarily inaccessible not permanently lost / unavailable
Eval = good
- many psychologists studied - reliable
- Danaher et al = advertisers - ecological validity
- useful - applicable in real life
Eval = bad
- most research is lab based - low mundane realism
- HOWEVER - ecological validity promoted by Danaher etc.
- doesn’t really account for how it variates between individuals - too simplistic less useful (reductionist)
Supporting research (Postman 1960)
retroactive
paired words list
C1 = learn another list - second word = different
C2 = control no other task
results = C2 BETTER RECALL