MindFrame
For students

The study skill that outperforms everything else — including tutoring

Effect size g = 0.63 on academic performance. That's larger than homework, class size reduction, or most one-on-one tutoring. Metacognition is trainable. MindFrame is how you train it.

Free plan includes all 19 training modes  ·  No credit card  ·  4–5-minute sessions

The academic performance evidence

The largest trainable academic effect ever measured

This isn't about IQ. It's about knowing when you know something vs when you're guessing — and most students have never been taught to tell the difference.

g = 0.63
Effect on academic performance
Trained students outperformed 73% of untrained — more than homework, tutoring, or class size cuts
de Boer et al., 2018 — 67 studies
Your trend
What MindFrame measures for you
Research supports the principle; your own calibration trend shows whether it is working for you
MindFrame methodology
6–11%
Forecasting accuracy gain
Under an hour of probability training consistently improved forecasting accuracy (Brier scores) over a control group
Good Judgment Project (Mellers et al., 2014)

How to read g: Hedges' g is a standardised effect size. g = 0.20 small · 0.50 medium · 0.80+ large. g = 0.63 means the trained group outperformed about 73% of the untrained group. These are school studies, not MindFrame results. Full evidence base →

What metacognition actually fixes

Four problems most students don't know they have

01
Illusion of knowing

“You study things you already know”

Fluency feels like understanding — but recognising a concept when you read it is very different from being able to retrieve and apply it. MindFrame's calibration training exposes this gap before the exam does.

02
Overconfidence bias in retrieval

“You feel confident but fail the test”

Classic calibration studies found that answers people feel near-certain about are wrong far more often than their confidence implies. Calibration training directly corrects this by giving you precise feedback on the distance between your confidence and your actual accuracy.

03
Strategy monitoring gap

“You can't tell which study strategy is working”

Strategy monitoring — tracking whether your approach is actually working — is a core metacognitive regulation skill. MindFrame's session analytics show which thinking patterns are improving across weeks.

04
Working memory breakdown under stress

“You panic under exam pressure”

When working memory is overwhelmed by anxiety, thinking quality degrades. Systematic metacognitive practice builds resilient thinking habits that hold under pressure.

How MindFrame helps

19 modes. About 4–5 minutes. Fits between study blocks.

Bias Hunter

Free

Catch the thinking errors that lead to wrong exam answers — overconfidence, availability bias, confirmation bias. Recognising a pattern in your own reasoning is the first step to correcting it.

Calibration Lab

Free

Know when you're ready vs when you're fooling yourself. The direct antidote to the illusion of knowing — you rate confidence before seeing the result, so you build an accurate internal compass.

Decision Lab

Free

Make better choices under time pressure. Structured practice in applying clear reasoning when options are ambiguous — useful for essay planning, case studies, and MCQ elimination.

Reflection Sprint

Free

Understand how you actually think through problems. A few minutes of structured self-examination that builds the habit elite learners use to compound their improvement week over week.

Prediction Arena

Free

Quantify and track your foresight over time. Make predictions, revisit them, and measure how well your confidence matched reality — the skill at the core of any high-stakes assessment.

What your scores actually mean

Understanding your Brier Score

Imagine taking practice tests and rating your confidence on each answer — say, 60% certain, 90% certain, 40% certain. Your Brier Score measures how well those confidence ratings matched your actual results. A score of 0 is perfect. A score of 1 is maximally wrong.

Most untrained students sit around 0.20–0.35. They're more overconfident than they think — they feel 90% sure about things they only get right 60% of the time. Every MindFrame session updates your Brier Score, so you always know exactly where you stand.

0.00
Perfect calibration
0.15
Well-trained
0.25+
Typical untrained

Fitting it into your routine

5 sessions per week is enough

Research shows distributed practice is 2–4× more effective than massed studying. MindFrame is designed for short daily sessions (about 4–5 minutes) that add up over weeks — not another app demanding your evenings.

Morning

1 Calibration Lab challenge before your first study block

Primes your self-monitoring before you encounter new material

Study break

1–2 Bias Hunter challenges during a 5-minute rest

Exposes the thinking errors most likely to surface in your subject area

Evening

1 Reflection Sprint after your last study session

Consolidates what you learned and flags what to revisit tomorrow

19 people training their thinking
224 challenges completed

MindFrame vs flashcard apps

Anki and Quizlet train what you know.
MindFrame trains whether you know what you know.

🃏

Flashcard apps

Trains
Subject knowledge recall
Misses
Whether your recall confidence is accurate
📝

Practice tests

Trains
Exposure to question formats
Misses
The calibration layer — confidence vs. actual score
🧠

MindFrame

Trains
The thinking process behind your answers
Covers
Nothing — it measures all three layers

Common questions

FAQ for students

What is a Brier Score?

The Brier Score measures how accurate your probability forecasts are: (stated probability − actual outcome)², averaged. 0 is perfect; 0.25 is what you get by always saying 50%. Top forecasters in the Good Judgment Project held scores around 0.10–0.12. MindFrame shows yours after every session so you can see whether your self-assessment is getting sharper.

How quickly will I see results?

We have not yet measured MindFrame's effect on its own users, so we do not promise a timeline. Published calibration research shows feedback on confidence versus accuracy can improve calibration with deliberate practice. Your results page shows your Brier Score and Calibration Error after every session and your trend over time, so you can see for yourself whether they move.

How long does a session take?

A standard session takes about 4–5 minutes; quick sessions take 2–3. You answer a short set of challenges, rate your confidence on each, and optionally explain your reasoning. Then you get your scores and one concrete next step.

Does it work for any subject?

MindFrame trains the thinking process, not subject knowledge: noticing when you are overconfident, checking assumptions, updating on evidence. Whether those habits carry over to a given subject is something you can watch in your own calibration trend; we do not claim a measured transfer effect yet.

What's included in the free plan?

All 19 training modes with no paywall on sessions, every game, core analytics, calibration scores, the Cognitive Fingerprint, core badges and 3 AI coach messages a day. No credit card required.

Is there a student or nonprofit discount?

Every training mode and game is already free, which covers most students. If you're using MindFrame for a course, a research study or a nonprofit programme and need Season Passes for a group, email [email protected].

Train your thinking for free.

No credit card required. All 19 training modes included. About 4–5 minutes a session.

Create your free account →

Already training? Read the research behind MindFrame