AO3

• Peterson & Peterson ( 1959 )

  • Aim: to test the duration of the STM
  • Procedure: trigrams ( 3 letters )
  • Results: at 3 seconds 80% recalled, at 18 seconds, 10% recalled
  • duration is up to 30 seconds
• Baddeley Encoding research ( 1966 ): investigated 4 word lists

  Aim: to see if similarity in words had an impact on recall

  • List A - similar words
  • List B - dissimilar words
  • List C - similar meaning
  • List D - dissimilar meaning

  List A and C had the lowest recall rate
• Bahrick ( 1975 ) study:

  • Aim: test the duration of long term memory
  • Procedure: 392 American uni grads were shown high school year book photos and asked to match the photos
• Bahrick ( 1975 ) study:

  • Results: 90% of participants could match the names after 14 years
  • 60% of participants could match the names after 47 years
• Sperling (1960):

  • Aim: To test the capacity of the Sensory memory
  • Procedure: Participants were shown a 3 x 3 grid containing nine letters for half a second
  • Results: participants were able to recall 4 letters