Aim: To investigate the time that information stays in our STM without rehearsal.
Method: Participants were given groups of letters such as JKF. They were then asked to count backwards in threes, so that rehearsing was not possible, then they asked to give the combination of letters.
Results: After 18seconds of counting back in threes the letters could not be recalled.
Conclusion: Our short term memory can hold information for 18seconds without rehearsal.
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