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Daniel, president of his fraternity, is in charge of choosing a new alarm code for the house. He just finished a cognitive psychology course where he was introduced to George Miller's research. Daniel wants to choose a number his brothers will remember.Which of the following numbers would be the BEST choice?Elimination ToolSelect one answerAA string of twelve computer-generated random numbers.BTwo groups of three digits and one group of four digits.CThirteen important dates in American history.DEleven digits, chosen randomly.EThe birth dates of all fifteen brothers.

Question

Daniel, president of his fraternity, is in charge of choosing a new alarm code for the house. He just finished a cognitive psychology course where he was introduced to George Miller's research. Daniel wants to choose a number his brothers will remember.Which of the following numbers would be the BEST choice?Elimination ToolSelect one answerAA string of twelve computer-generated random numbers.BTwo groups of three digits and one group of four digits.CThirteen important dates in American history.DEleven digits, chosen randomly.EThe birth dates of all fifteen brothers.

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Solution

The best choice would be B: Two groups of three digits and one group of four digits. This is based on George Miller's research which suggests that the average number of objects an individual can hold in their working memory is about seven. This is often interpreted as a reflection of the capacity of short term memory. By breaking the code into smaller groups, it becomes easier to remember.

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