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Dave Porter's avatar

Fifteen years ago, one of my senior psychology research students designed an ingenious experiment. Using students in my two freshman composition courses, she applied something called the "CLOSE" technique. She replaced every 5th word in a 200-word essay with a blank. Students were asked to fill in the blanks. Grading was simply the percentage of correct responses for the 40 blanks. Subjects did this for 3 essays: an essay they had written, an essay they had read, and an essay they had never seen before. The success rates for the three types of essays were distinctly different: 90% correct for what they had written; 75% for what they had recently read and 60% for the new material (essays written by students the previous year). Four weeks later, performance on the essay they had written had not declined, but performance on the essay they had only read declined to the unread level. This demonstrated that the process of writing changes memory (and thus our brains) in ways that simply reading an essay doesn’t. And, by the way, any writing that students submit can be turned into a CLOSE test and show whether or not they actually wrote it. Also, the student researcher went on to earn a doctorate in quantitative psych and now leads the James Madison University Center for Assessment and Research.

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