Clinical perspective, offered as context rather than as advice. It is worth asking what the claim would look like if it were false. If nothing would look different, it is not a claim about the world and no amount of discussion will settle it.

lucas_SP_BR said:

Say what you would expect to see if you were wrong, before you look.

This is exactly what I could not find anywhere else.

Adding the clinical framing, because it changes how the question reads. Start from the measurement rather than the conclusion. Almost every disagreement here turns out to be two people measuring different things and comparing the numbers anyway.

SleepDoc_PDX said:

Start from the measurement rather than the conclusion.

Same pattern here, and in the same order.

Moderator note: good thread. Keeping it here rather than moving it, because the question is general enough to be useful. Carry on.