I named specific and well-known forms of bias (observer
bias and survivor bias). I did not invent these insights,
I'm just applying them.
You can hardly expect researchers to discard all data just
because Jym Dyer thinks it might be invalid!

=v= You keep rewording this into _ad_hominem_ blather about
me. All this conveys is that you have nothing of substance
to offer about the points I'm raising.
_Jym_