Testing yourself is a better way to learn than re-reading.

It feels productive to re-read notes, but pulling information out of memory — through quizzes, flashcards, or trying to recall — strengthens learning far more. Roediger & Karpicke (2006) showed that students who were tested on material remembered much more a week later than students who simply restudied it, even though the restudiers felt more confident.

The effect has since been replicated across ages, subjects, and classroom settings, and it pairs powerfully with spacing. It also has a metacognitive twist: retrieval feels harder and less rewarding in the moment, which is exactly why learners under-use it. Building tests into study — as this platform's auto-generated quizzes do — is one of the surest ways to make knowledge stick.