Improving memory - (retrieval) practice makes perfect

Today we would like to present you with the another (terrific) guest blogger. Joseph Williams is a graduate student in the cognitive psychology program at UC-Berkeley. Enjoy!

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You’re about to read a 200-word science passage on sea otters so that you can successfully answer questions about it in a week’s time. What strategies would you use to study it? Which of these options would you choose? (a) reading it four times, (b) drawing out a concept map of all the key ideas, or (c) reading it, trying to recall it, reading it one more time, and trying to recall it one more time.

If you smugly chose the alluring quadruple study option or took a gamble on the newfangled concept map, it’s likely that a week from now your memory would be letting you down. A recent paper in Science by Karpicke & Blunt at Purdue University reports an experiment along these lines. Testing oneself or engaging in retrieval practice had the greatest benefit for being able to remember facts from the passage and for drawing inferences that required putting these facts together. But it seems so counterintuitive that testing yourself on information could be better than thoroughly studying material or building elaborate diagrams. Surely students would all be on the honor roll if only they put in that much effort!
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