duration

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Created by
jasmine

Cards (10)

  • STM duration

    18-30 seconds
  • consonant trigram experiment

    -Peterson & Peterson
    -investigate the duration of short term memory
  • consonant trigram experiment - PROCEDURE

    -Ps shown consonant trigram
    -asked to count backwards in 3s for either 3,6,9,12,15,18s
    -recall consonant trigram (recall had to be 100% to be correct)
  • consonant trigram experiment - FINDINGS 

    -after 3s = 80% trigrams recalled
    -6s = 50%
    -18s = only 10% recalled
  • consonant trigram experiment - CONCLUSION

    duration of STM around 18 seconds
  • LTM duration

    can last a lifetime
  • Bahrick's study - AIM

    to investigate the duration of LTM
  • Bahrick's study -PROCEDURE 

    -392 American ex high-school students (17-74)
    -free recall of names of their former classmates
    -photo recognition test
    -name recognition test
    -photo & name matching test
    -Ps accuracy assessed by comparing responses with yearbooks
  • Bahrick's study - FINDINGS 

    -90% accuracy in name & face recognition
    -free recall less accurate (60% after 15 years , 30% after 48)
  • Bahrick's study - CONCLUSION

    -classmates rarely forgotten when recognition cues given
    -LTM can last a lifetime