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Social Studies, 12.11.2019 22:31 jayy6863

In the peterson and peterson study, participants saw three sets of random letters (for example, mtz, pwh, kql) and then counted backwards by 7 from a numeric prompt (for example, 358) for set time intervals of three to eighteen seconds. finally, participants recalled as many letters as possible. in this test of the duration of short term memory, the purpose of counting backwards by 7 is:

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