[BroJoeK]

reasonisfaith: "If a scientist encounters evidence disproving his favorite hypothesis, he will experience cognitive dissonance.
In many cases, this will cause him to reject the evidence."

Sure, just as my most recent UFO sighting was rejected for lack of stronger evidence.
Just kidding, the only "UFOs" I've ever seen were at the tip end of contrails, too high to make out what they were:

reasonisfaith: "This is why Bacon said we believe what we prefer to be true, and it’s the reason we use the double blind method"

Right, and a double-blind test can protect a valid theory just as well as it falsifies an invalid one.

Do we disagree?

[reasonisfaith]

Sure. If we didn’t use the double blind method, the scientist’s inherent bias would skew the results.