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If people have to compute the answer to each problem

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Unformatted text preview: It is trying to see whether people calculate the answer to each question by repeated addition (e.g., 9 + 9 + 9 + 9), or whether they have the answers memorized. In the experiment, I was given several multiplication problems, and the computer timed how long it took me to answer. If people have to compute the answer to each problem, then we’d expect it to take longer to answer when the numbers being multiplied are larger (because there are more additions to do). However, if people simply have the answers memorized, then there shouldn’t be any relationship between the size of the numbers and reaction time. In fact, no relationship between number size and reaction time was found, supporting the memorization hypothesis. This finding provides evidence that people increase their performance at mental arithmetic by memorizing intermediate results. (The last sentence is something that you would...
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This note was uploaded on 11/22/2011 for the course PSYCH 120 taught by Professor Hald during the Summer '09 term at Berkeley.

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