How to Build a Daily Review Habit You Can Keep

Why a daily review is worth turning into a habit

Two ideas from learning research help explain why a small, repeated review is worth trying. Distributed practice means spreading study over several days instead of one long sitting. Practice testing means trying to answer from memory instead of rereading. A major review of ten study techniques rated both as high utility, and rated rereading and highlighting as low utility (Dunlosky et al., 2013).

A later review reported that spacing out repeated encounters with material produces better long-term learning than massed repetition, and that adding tests to spaced practice amplifies the benefits (Kang, 2016). Neither summary we read says that daily is the ideal gap. Our reasoning, not a finding, is that a short daily session keeps due cards from piling up, which the guide on how many new flashcards to add each day explains in numbers.

What the habit research found, and what it did not

In a 12-week study, 96 volunteers each chose an eating, drinking or activity behavior, did it daily in the same context, and rated how automatic it felt. Automaticity rose along a leveling-off curve, steeper at the start and flatter later. Among people whose data fit that curve, the time to reach 95% of their own plateau ranged from 18 to 254 days (Lally et al., 2010).

Two cautions matter. The model fit well for only 39 of the 82 people whose data could be analyzed, so no single number of days applies to everyone. And the behaviors were eating, drinking and exercise, so we cannot say how long a study habit takes. Any article that promises a fixed number of days is going beyond this study.

One more finding helps with planning: missing a single opportunity to do the behavior did not materially affect the habit formation process (Lally et al., 2010). That was true for this sample and these behaviors. We apply it to studying as a reasonable bet, not as a tested result.

Build the routine: a trigger, a small version, a tally

1. Pick a trigger that already happens every day. The volunteers acted in the same context each day, so tie your review to a specific action, such as pouring your morning coffee, not to a vague time like sometime this evening.
2. Write down the smallest version you would still call a review. One short session is enough.
3. Decide what done means before you start, for example the last card is answered.
4. Mark each day you finish. A paper calendar works. So does the Consistency calendar in the My progress tab of Practice, which shades each day by how many cards you reviewed.

Plan for the day you miss

Misses will happen, so decide your response in advance. Our rule of thumb, which is not a research finding: after a miss, do the small version at the next trigger and skip any catch-up marathon.

With a scheduled deck, a missed day just means some cards wait longer. In Practice, the Study tab shows how many cards are due today, so you can see the size of the backlog before you start. If it is large, the weekly review plan shows how to clear it over a few days. If a streak counter makes a miss feel like a disaster, read study streaks and rest days first.

• I can name the existing action that triggers my review.
• I wrote down my small version.
• I know what done means for a session.
• I know where I mark finished days.
• I know what I will do the day after a miss.

Common mistakes

• Starting with a session so long that one bad day breaks it. Write the small version first and make it your minimum. Add more only on days when you have the energy.
• Using a vague trigger such as in the evening. Attach the review to a specific action that already happens, like a meal, a commute or plugging in your phone.
• Treating one missed day as the end of the habit. In the habit study, missing one opportunity did not materially affect the process. Resume at the next trigger with the small version.
• Waiting for a magic day count before you trust the habit. The study found a wide range, 18 to 254 days among people whose data fit. Judge by whether the routine feels easier, not by a countdown.

Frequently asked questions

How long does it take to build a study habit?

No verified number exists for study habits. In one 12-week study of eating, drinking and exercise habits, the time to reach 95% of each person's plateau of automatic behavior ranged from 18 to 254 days among people whose data fit the model. Expect variation, and judge by how easy the routine feels.

Is it better to review every day or every other day?

The summaries we read do not compare those two schedules. One spacing study found that the best gap between sessions grew as the delay until the final test grew (Cepeda et al., 2008). That is one study of one kind of material, not a personal schedule. Pick a rhythm you can keep.

What time of day should I review?

We found no verified study that ranks times of day. Because the habit study had people act in the same context daily, choose a slot tied to something that already happens at a steady time, and keep it there.

What if I miss a whole week?

Restart with the small version at your usual trigger and do not try to redo everything. In Practice, check the due count first and spread the backlog over several sessions. The study covered a single missed opportunity, so a week goes beyond what it tells us.

Sources

We opened each source below before citing it. See Methodology and Sources for how we check them.

1. Lally, P., van Jaarsveld, C. H. M., Potts, H. W. W., & Wardle, J. (2010). How are habits formed: Modelling habit formation in the real world. European Journal of Social Psychology, 40(6), 998-1009. Open the source
2. Dunlosky, J., Rawson, K. A., Marsh, E. J., Nathan, M. J., & Willingham, D. T. (2013). Improving Students' Learning With Effective Learning Techniques: Promising Directions From Cognitive and Educational Psychology. Psychological Science in the Public Interest, 14(1), 4-58. Open the source
3. Kang, S. H. K. (2016). Spaced Repetition Promotes Efficient and Effective Learning. Policy Insights from the Behavioral and Brain Sciences, 3(1), 12-19. Open the source
4. Cepeda, N. J., Vul, E., Rohrer, D., Wixted, J. T., & Pashler, H. (2008). Spacing Effects in Learning: A Temporal Ridgeline of Optimal Retention. Psychological Science, 19(11), 1095-1102. Open the source