Models Of Memory Procedures: MEMORY Flashcards
Bachrick et Al (1975) Procedure
What does this support?
- Studied 392 American participants ages 17-74
- researches obtained the yearbooks from the participants
Recall tested in 2 ways
1) photo recognition
2) Free call
Supports duration of long term memory
Peterson + Peterson (1959)
study
What does this support?
- Tested 24 students
- students given a consonant syllable to remember
- also given 3 digit number
- students counted backwards in 3’s from this number until told to stop
- on each trial, participants asked to stop after varying periods 3-18 seconds
Supports duration of short term memory (18 seconds approx)
Jacobs (1887) Procedure
What does this support?
Researcher reads digit span to participant
Participant recalls digit span
This continues until participant reads incorrectly
Supports capacity of STM= 9. 3 items for didgits
Miller (1956) Procedure
What does this support?
Observed everyday practice to develop an idea about the capacity of the STM.
concluded that everyday we heavily operate off of the number 7. E.g: 7 days of week, 7 music notes, 7 deadly sins
Supports capacity of STM= 7 ±2 items
Baddely (1967) Procedure
What did this support
- separate pp into 4 groups: acoustically similar, acoustically dissimilar, semantically similar, semantically dissimilar
- each group given word list reflecting their experimental condition
- pp had to learn word list and then recall them immediately after, or after 20 min interval.
Coding of memory= long term: semantically
Short term: acoustically
Glanzer + Cunitz (1966) Procedure
What does this support?
- PP shown list of 20 words
- words shown one at a time
- asked to remember each word then write them down once all words had been shown
Supports recency and primary effect