Here is a good article that brings up the "the experimenter effect" when comparing experiements to test if people can tell if someone is staring at them.
http://www.highbeam.com/library/docFree.asp?DOCID=1G1:60302609 Experimenters that believe in paranormal effects tend to have results that suggest that confirm paranormal effects exist and experiments with no such belief tend to have results that disprove paranormal effects.
Interesting.
Here is another great link to a summary from Michael Shermer's "Why People Believe Weird Things".
http://www.positiveatheism.org/writ/sherm3.htm Twenty-Five Fallacy's That Lead Us to Believe Weird Things.
Also interesting.
But, according to Michael Shermer, more people now believe in ghosts than during the 1960's. Are people less rational and are critical thinking skills now worse than 40 years ago?
