I built this because I got tired of practice platforms reporting a score to the nearest point when nobody outside the College Board has the equating data to justify the last two digits.
Preptics reports a range with a stated confidence instead 60 after one mock, narrowing to 40 after three, where it stops, because what's left at that point is conversion error and a fourth test doesn't reduce it. The whole method is public at /how-scores-work, thresholds included.
It's free during beta. The interactive graphers at /tools need no account at all if you just want to poke at something.
Happy to argue about the statistics in the comments that's genuinely the feedback I want.
Try the Live Interactive Demo Here
Welcome to our first beta launch! We are incredibly excited to share what we have built, and we need your help to make it even better.
Because this is a beta, we are looking for honest, constructive feedback. Please tear it apart! We want to hear your thoughts on:
The product & features: What works well, and what feels missing?
The content & design: Is the app easy to navigate and visually appealing?
Our mistakes: Did you find any bugs, confusing layouts, or clunky experiences?
We will be actively updating the app based on your insights to build a truly exceptional product. Thank you so much for your time, support, and valuable advice.
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