How to Coach Yourself and Others Beware of Manipulation | Page 197

keep in mind that even a field with a great deal of internal dispute might contain areas of significant
agreement. In such cases, an Appeal to Authority could be legitimate.
The person in question is not significantly biased.
If an expert is significantly biased then the claims he makes within his are of bias will be less reliable.
Since a biased expert will not be reliable, an Argument from Authority based on a biased expert will be
fallacious. This is because the evidence will not justify accepting the claim.
Experts, being people, are vulnerable to biases and predjudices. If there is evidence that a person is
biased in some manner that would affect the reliability of her claims, then an Argument from Authorit