Petersons

• What was average recall after 3 seconds in Petersons' study?

  80%
• What was average recall after 18 seconds in Petersons' study?

  3%
• What do Petersons' findings suggest?

  STM duration may be about 18 seconds unless we rehearse the information
• How did Petersons' test the duration of STM?

  Students given a consonant syllable and 3-digit number to remember and they counted backwards from this number until told to stop
• Why were students asked to count backwards from the 3-digit number in Petersons' study?

  Prevent mental rehearsal of the consonant syllable
• After what periods of time were students asked to stop in Petersons' study?

  3, 6, 9, 12, 15 or 18
• How many students did Petersons' study?

  24
• Who were the participants Petersons' studied?

  Students