Show HN: I built a free voice test that spots dementia signs via AI

From your FAQ: "While this is a beta product, our tests show it to be about 82% accurate."

What does this mean? Is it the true positive rate? The true negative rate? An average of the two? An average weighted by frequency?

Yes, that "82%" figure is so handwavy as to be meaningless. In addition to your questions, I have more: how was this figure arrived at? Where are the studies? How were they conducted? Etc.

Any single study needs to be treated with extreme caution even if it was well-conducted. In this case, we don't even know if a study was conducted and, if it was, whether or not it was of high enough quality to matter.

Is there an actual theory about the link between voice and dementia?

Maybe add a reference to DementiaBank as required by the dataset.