People are very resistant to changing their minds and tend to justify decisions once made, ignoring, rationalizing or misinterpreting contrary evidence. This website has an interesting collection of stories of where people changed their minds.
The World Question Center 2008
The World Question Center 2008
[FONT=Verdana, Arial, Helvetica, sans-serif] WHAT HAVE YOU CHANGED YOUR MIND ABOUT? WHY?[/FONT]
[FONT=Verdana, Arial, Helvetica, sans-serif]Science is based on evidence. What happens when the data change? How have scientific findings or arguments changed your mind?"[/FONT]