coding, capacity and duration of memory
- Created by: lucypop0104
- Created on: 19-03-17 15:50
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- memory
- Baddeley (1996) - researched coding
- limitation - artificial stimuli - shouldn't generalise
- Long Term Memory
- capacity - potentially unlimited
- coding - mainly semantic (meaning)
- duration - potentially unlimited
- Short Term Memory
- capacity - 7 (+ or - 2)
- coding - mainly acoustic (sounds)
- duration - between 18 to 30 seconds
- Jacobs (1887) - capacity of STM
- limitation - very old study, may lack control BUT later research supports validity
- Miller (1956) - span and chunking
- limitation - overestimated capacity. Cowan et al states capacity is around 4 chunks
- duration of STM - Peterson & Peterson (1959)
- meaningless stimuli - lacks external validity BUT phone numbers
- duration of LTM - Bahrick et al (1975)
- higher in external validity - real life memories studied BUT uncontrolled confounding variables
- Baddeley (1996) - researched coding
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