Re-reading feels productive. Here's what works better.
You read the chapter three times. Everything looks familiar. Then the exam starts, and the page in front of you stays blank. That's not because you're bad at studying: re-reading quietly tricks your brain.
Why re-reading feels good (and fools you)
When you read a page again, it feels easy because you recognise it. But recognising is not remembering. In the exam, nobody shows you the page: you have to pull the idea out of your own head. Re-reading never trains that.
In 2013, a team of psychologists led by John Dunlosky looked at hundreds of studies on ten popular study techniques. Re-reading and highlighting got a low rating: they feel productive but help little. Testing yourself got the highest rating.
The experiment that shows it
In a well-known study, students read a short text. Then one group read it again, and the other group wrote down everything they could remember, without looking. Later, everyone was tested.
Re-reading wins the short race. Recalling wins the one that counts: the exam, days or weeks later.
The blank page method (10 minutes)
- Read one part of your course: a few pages, not the whole chapter.
- Close it. Take a blank page.
- Write everything you remember: ideas, formulas, a small drawing. Don't look. If it feels hard, good: that effort is what makes it stick.
- Open the course and check. Correct every wrong idea in another colour, and add what you missed.
- Tomorrow, do it again for two minutes before you start something new.
Three traps to avoid
- Checking too early. Try to remember first, even if you only get two lines.
- Only marking "wrong". Write the right version next to it, or the wrong idea stays.
- Doing it only right after reading. Remembering the next day is harder, and that's exactly why it helps more.
Try it tonight
Pick one part you studied today. Close everything. Two minutes, a blank page: write what you remember. Then check. That's it.
MajorMind does this for you: a blank page after each part of your course, and a short warm-up the next day. Free.
Join the betaSources
- Dunlosky, J., Rawson, K. A., Marsh, E. J., Nathan, M. J., & Willingham, D. T. (2013). Improving students' learning with effective learning techniques. Psychological Science in the Public Interest, 14(1), 4–58.
- Roediger, H. L., & Karpicke, J. D. (2006). Test-enhanced learning: Taking memory tests improves long-term retention. Psychological Science, 17(3), 249–255.