Confirmation bias

In skepticism, "confirmation bias" is a state of mind in which you remember evidence that supports your position and ignore or forget evidence to the contrary, which works to keep a cherished belief safe.

Evaluation/Investigation

First evaluate if a claim is true, then investigate how it's happening.

Argument from Authority fallacy explanation

"Because an argument is supported by an authority doesn't make it not true either... it's just that it's not necessarily true just because an authority is supporting it... [an authority] is as much value as it has earned."

-Stephen Novella, Skeptics Guide 5x5 #49