Miller's magical number for memory span (7 ± 2) is humorously brought to task because of its inability to predict the everyday performance of teenagers, graduate students, and full professors. Explanations are provided for the deficits in memory performance of these subgroups during lifespan development.
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References
1.
MillerG. (1956) The magical number seven, plus or minus two: Some limits on our capacity for processing information. Psychological Review, 63, 81–97.
