What is the most effective study technique?

Active recall (practice testing) is the single most effective technique. Instead of re-reading, you retrieve answers from memory. In a landmark study, students who self-tested remembered about 80% of material after a week, versus 34% for those who re-read.

Is rereading a good way to study?

No. Rereading, highlighting, and cramming feel productive but are rated low-utility by research (Dunlosky et al., 2013). Use them only to prepare material that you then study with active recall and spaced repetition.

How far in advance should I study for an exam?

Start at least a week or two before, and space your review across several days. Spaced (distributed) practice produces far more durable memory than a single cramming session, and sleep helps consolidate what you learn.

How to Study Effectively (Backed by Research)

Updated June 2026 · 6 min read

Most students study the way that feels productive — rereading and highlighting — which research shows barely works. Here are the techniques that actually move the needle, and the ones to drop.

1. Active recall — the single best technique

Instead of re-reading, close the book and retrieve the answer from memory. The effort of recall is what builds durable memory. In Roediger & Karpicke's landmark study, students who self-tested remembered ~80% after a week versus 34% for re-readers. Turn your notes into questions; flashcards are active recall.

2. Spaced repetition

Review material across days, not in one marathon. Study today, review tomorrow, then in three days, then a week. Each review at the edge of forgetting re-strengthens the memory — which is why spacing crushes cramming for anything you need to remember beyond tomorrow.

3. Interleaving

Mix problem types and topics in one session instead of doing 20 of the same in a row. It feels harder — and that difficulty is exactly why it works better for transferring skills to new problems.

4. Elaboration & the Feynman technique

Ask "why?" and connect new ideas to what you already know. Then explain the concept simply enough for a 12-year-old (the Feynman technique) — wherever you stumble is exactly where your understanding is thin.

5. Dual coding & concrete examples

Pair words with diagrams you draw from memory, and tie every abstract idea to two or three vivid, specific examples.

6. Pomodoro to beat procrastination

25 minutes focused, 5-minute break, repeat. A 25-minute commitment is small enough to start — and starting is the hardest part.

Skip the low-yield habits

These feel like studying but are rated low-utility: rereading, highlighting, passive summarizing, and cramming. Multitasking (phone, tabs) wrecks encoding. Use them only to prep material you then actively recall.

Frequently asked questions

What's the most effective study technique?

Active recall — retrieving from memory instead of re-reading. It's the highest-utility method in the research, paired with spaced repetition.

Does rereading work?

Barely. Rereading, highlighting, and cramming are low-utility. Use them only to prep material you then self-test on.

How early should I start studying for an exam?

A week or two out, spaced across several days. And don't skip sleep — memory consolidates while you sleep, so all-nighters cost more than they buy.

Turn your notes into study power

CoursePlanner's AI study tools turn your notes into flashcards (active recall), study guides, and an audio recap — and the free Learn-to-Study hub explains every technique with step-by-step how-tos.

Open Learn to study →

Sources: Dunlosky et al. (2013); Roediger & Karpicke (2006); the Learning Scientists.