coding, capctiy and duratiopn (Peterson 1959 consonant syllabels)

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5 Terms

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Aim

To find out how long STM if accurate for

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Procedure

24 students were given a consonant syllable (e.g. YCG) to recall, and a 3 digit number to count backwards from

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Findings

After 3 seconds=average recall was 80%

After 18 seconds=average recall fell to 3%

Therefore STM without rehearsal lasts for around 18 seconds

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Strengths of Peterson x2 1959 consonant syllables experiment

  • Tightly controlled experiment (in a lab) so there were less EVs

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Weaknesses

Meaningless stimuli- so doesn’t reflect everyday memory tasks, and therefore lacks external validity