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Jacobs (1887) ­ Capacity STM

Aim: Jacob's aims were to demonstrate how much info could be stored in immediate or short-term

Participants were read lists of either words or numbers that they had to recall immediately after
presentation. Jacobs gradually increased the length of these digits etc. until…

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Peterson and Peterson (1959) ­ Duration STM

Aim: To investigate the duration of short-term memory, and provide empirical evidence for the
multi-store model.
A lab experiment was conducted in
which 24 participants (psychology
students) had to recall trigrams
(meaningless three-consonant
syllables, e.g. TGH). To prevent
rehearsal participants were asked…

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The aim of this study was to investigate the effect of environmental encoding cues on the ability to
recall. In particular Godden and Baddeley wanted to investigate the role of context cues and test
cue-dependency theory which argues that recall will be better if it takes place in the same…

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For example, when participants learnt and recalled on dry land the mean number of words recalled
was 13.5 and similarly when participants had to learn and recall in the water the mean score was
11.4. The mean number of words recalled was much lower when the learning and recall environments…

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The aim of the study was to investigate the nature of coding in STM.

Conrad presented participants with several series of 6 letters visually at a rate of 0.75 seconds per
letter. The letters used were selected from B, C, F, M, N, P, S, T, V, &…

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Aim: To investigate the retention of names and faces of high school classmates up to 47 years later
using both recall and recognition

374 participants aged between 17 and 74 were tested on their memory of school friends. A number
of different tests were carried out including a free…


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