Hi, what does the Strengh percentage shown in the Memory Progress section measure? It does not appear to be the % of answers correct in quizzes to date.
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Hi @prof, good question!
The memory strength percentage is a proprietary measure that our adaptive learning system uses internally as it tracks your mastery of the material. It’s correlated with your answers, but there’s a lot more that goes into it. I’d actually love to share how it works but that’s one of our secrets that makes Achievable so much more effective than other programs 
Aside from broadly saying that a higher percentage is better and that it’s motivating to see it increase as you study, it really isn’t a meaningful stat as a learner. We’re in the process of redesigning our site and we’re going to be replacing it with a clearer way to track your progress. On the same subject, we’re also giving the “Upcoming workload” chart a major overhaul.
So basically - don’t worry about it! It’s better to focus on keeping your “ready” item count as low as possible.
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