You are really talking about psychology of belief here.
When someone has a personal belief that is so near and dear to them and it just so happens, well evidenced reality contradicts this belief, what follows can be interesting.
A person can either come to realize their belief was mistaken, or they can build defense mechanisms to protect these beliefs. The defense mechanisms include; outright denial of this evidence, claiming the evidence is of an evil source and confirmation bias, looking for anything or anyone who agrees with them.
It really comes down to this; when it becomes to painful (internally) for someone to continue to deal with cognitive dissonance and a need to deny well evidenced reality, they will succumb to reality and adjust their beliefs. With some though, it is far to painful to give up the belief, so the battle with cognitive dissonance and assuring the defense mechanisms are strong, continues.
It is a really interesting process to watch in action.
Emphasis mine.
http://www.thunderbolts.info/forum/phpBB3/viewtopic.php?f=3&t=15850
The process that you describe, particularly the denial of evidence as a self defense mechanism, when it plays out in scientific circles is indeed quite fascinating. Long held, and long taught societal belief are not easily dismissed based upon a few lab failures, or discoveries of massive "methodology flaws" in previous studies.
Some belief systems are simply so deeply rooted in all areas of our society that it simply becomes psychologically easier to sweep the conflicting evidence right under the rug, and trudge forward as though nothing happened to refute the so called "predictions" of their belief systems. Denial of evidence is pretty much a universal behavior when the belief systems come into conflict with real empirical physical evidence.
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