Types of memory - LTM Flashcards
what is the capacity for LTM?
unlimited
describe the research into the capacity for the LTM
Wagenaar (1986):
- wrote diary of 2400 events over 6 years
- tested recall on events rather than dates
- found he has excellent recall
what is the duration of the LTM?
few minutes to a lifetime
describe the method into the duration of the LTM
Bahrick (1975):
- studied 392 p’s age 17-74 on students in their high school yearbook
- done via photo recognition and free recall
what is the coding for LTM?
- semantic
- material with similar meanings can be confused
describe the results of the research into the duration of the LTM
photo recognition
- after 15 years of graduating - 90% recall
- after 48 years - 70%
free recall
- after 15 years - 60%
- after 48 years - 30%
describe the conclusion of the research into the duration of the LTM
- recognition is better than recall
- therefore we store info for a long time but need help retrieving it
evaluate the research of the duration of the LTM
- field , high ecological validity
- less control, low internal validity
- if p’s talk about their high skl experience more they’re more likely to remember
describe the method of the research into the coding of LTM
Baddeley (1966):
- gave list of words to p’s either:
- acoustically similar (same sound)
- acoustically dissimilar (sound different)
- semantically similar (similar meaning)
- semantically dissimilar (different meanings)
- p’s asked to recall after 20 minutes
describe the results of the research into the coding of the LTM
p’s worst at recalling semantically similar
describe the conclusion of the research into the coding of the LTM
the confusion suggests the coding of the LTM is semantic
evaluate the research into the coding of the LTM
- artificial, lack ecological validity
- independent groups was used so p variables weren’t controlled
