Waldo insists that immunization vaccines cause autism, even though he knows that there is no credible scientific evidence to support that claim. this is an example of __________.
Waldo's opinion is an example of a stubborn refusal to abandon a discredited position. Such a refusal is often an example of prejudice and/or biased thinking. Because there is evidence to disprove the claim, and Waldo knows about it, his position can no longer be considered logical or valid.
