Whoops, you left out some parts. Thanks for posting the link to the article so I could get the full story, not just your slant.

From the author of the study-

"It's wrong to conclude that our results provide only bad news for conservatives," he wrote on Aug. 28, 2003. "True, we find some support for the traditional 'rigidity-of-the-right' hypothesis, but it is also true that liberals could be characterized on the basis of our overall profile as relatively disorganized, indecisive and perhaps overly drawn to ambiguity."

and

"We're not a very liberal country," she said. "We're more likely to find extreme conservatives in the U.S. than extreme liberals."

Skitka said there's ample evidence that ideologues on the far left can also be uptight.

"Extreme conservatives could be really rigid," she said. "Moderates should be pretty flexible. But if we go all the way to the left, they may look a lot like the extreme right -- rigid in their ideas."