39. Peterson and Peterson XXXXXXXXXXconducted an experiment of having participants remember random letters of the alphabet. They then instructed the participants to count backwards from a three-digit...

Peterson and Peterson (1959) conducted an experiment of having participants remember random letters of the alphabet. They then instructed the participants to count backwards from a three-digit number by threes aloud. The longer the participants spend counting backward, the fewer random letter units they could recall. This inability to recall the original random letters was due in part to?

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