Evaluate Types of Evidence - Is it sufficient to support the claim?
Personal Experience - may be biased, so do not accept it
Examples - should not be used by themselves
Statistics - can be misused, manipulated or misinterpreted
Comparisons and Analogies - reliability depends on how closely they correspond to the situation
Relevancy and Sufficiency of Evidence - is there enough of the right kind to support the claim?
Definition of Terms - should be carefully defined and used consistently
Cause-Effect Relationships - evidence that the relationship exists should be present
Implied or Stated Value System - are they consistent with your personal value system?
Recognizing and Refuting Opposing Viewpoints
Unfair Emotional Appeals - Emotionally Charged or Biased Language, False Authority, Association, Appeal to "Common Folk", Ad Hominem, "Join the Crowd" Appeal or Bandwagon