CAPACITY: (the amount of information the memory store holds). [7+/- 2 items]
- George Miller (1956) described the capacity as the magical number 7+/- 2 items.
- measured by the DIGIT SPAN TECHNIQUE, the experimenter reads out lists of numbers, asking participants to recall them in the same order as presented. The list is made longer each time by doing this the capacity of STM is measured.
-Miller suggested th Capacity of STM can be increased by chunking which is organising items of information into groups to make use of STM's limited capacity
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