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How is student revision strength calculated?

How we predict how well you'll remember what you've learned.

Written by Tom O'Donahoo

When you learn something new, that knowledge fades if you don't revisit it. The longer the gap, the harder it is to keep it fresh. We've worked on a solution to make this process easier.

How do we calculate it

Every time you complete an Atomi quiz or practice, we compare your result to millions of other data points from Atomi students. This tells us how you're doing in a topic relative to other students, and how likely you are to remember it over time.

We use this to work out your revision strength score for each topic. It's a relative measure of how much you've retained, and it changes as you practice and as time passes.

What you'll see

Your revision strength score for each topic shows up as one of four labels:

  • Prioritise revision: this topic needs attention now

  • Worth revising: this topic could use another look

  • Revise occasionally: check in on this topic every so often

  • Keep it topped up: give this topic a quick top-up now and then

If you do well in a quiz or practice, your revision strength score for that topic goes up, and the bar moves towards "Keep it topped up". If you leave a topic alone for a while, your revision strength score drops, and the bar drifts back down towards "Prioritise revision". The more you practice, and the better you do, the longer it takes to drift back down.

If you notice a topic's revision strength score slipping, jump in and revise to bring it back up.

Using it to plan your revision

We also use your revision strength score to recommend what to revise next. You'll find these recommendations at the top of your course.

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