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Notes from inside the question bank

On reading charts, on how these questions are built, and on the ways practice misleads you. Everything here is written from what we can actually measure — the mechanics are on the methodology page.

methodology7 min read

How many calls before your record means anything

If you are right 60% of the time, it takes about 194 calls to show that is not luck. At 55% it takes 783. Here is the arithmetic, and why your own record is harder.

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price action8 min read

An ordinary bar goes up 51.73% of the time

Pattern success rates are almost always scored against 50%. On 1.37 million intraday bars the baseline is 51.73%, which turns several reported edges into deficits.

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practice methods9 min read

You chose every trade in your journal

A trade journal records the setups you were confident enough to enter. That makes it a selected sample, and a selected sample cannot grade the reads you never acted on.

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practice methods7 min read

Blocked practice feels more effective than it is

Blocked practice tells you what kind of problem you are facing. Interleaved practice does not — and that is the harder format the research supports.

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practice methods9 min read

Why SwipeTA is not Duolingo for trading

Is SwipeTA Duolingo for trading? The mechanics look alike, but chart-reading practice has one problem language apps do not: the answer key is noisy.

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chart reading8 min read

Four places look-ahead bias leaks into a chart replay

Cropping the candles at the decision point closes one of them. The other three are a derived indicator, the record the question travels in, and the next question.

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