The Science of Learning

A 2012 research review shows that spacing improves almost every kind of learning - and that the best time to review depends on how long you need to remember. The rule of thumb: space your review at about 10-20% of the time you want the knowledge to last. Here's the research, and how Habident times it for you.

A landmark 2006 study showed that retrieving information from memory - not re-reading it - is what makes learning stick. Here's what Roediger and Karpicke found, and how Habident builds it into every practice session.

Will Thalheimer's research review shows that spreading learning out over time produces far more durable memory than cramming it into one session. Here's what the spacing effect research says, and how Habident builds it into every practice schedule.