On Apr 8, 12:48 pm, BruceS <bruce...@hotmail.com> wrote: > On Apr 7, 12:22 am, Brad <goog...@vk2qq.com> wrote: > > > On Apr 7, 2:01 pm, Graham Cooper <grahamcoop...@gmail.com> wrote: > > > > how come this random noise doesn't affect Zenner Card tests guessing 1 > > > card from 5 options? > > > Because the card test is repeated 25 times, followed by 9 more sets of > > 25 to randomise the noise out! You can't even get past guessing the > > second card. > > You beat me to it, Brad. That's pretty much it, Graham. The one in > five is *very* subject to random noise, whether it's one guess from > five choices or five guesses from twenty five. It's the repetition > that reduces the noise. However, with longer odds, like one in 50 > (you made the brag), the random noise causes fewer false positives > from the start. OTOH, to regularly get a hit on 1:50 odds would take > some sort of paranormal ability, and we all (including you) know you > don't have that! After all, you've repeatedly demonstrated that you > don't believe you have it.