______ is a post-decision theory.

Which theory of communication states the public will not have faith in a writer's message, or act on it, if it clashes with their existing beliefs?

a. Cognitive dissonance b. Diffusion c. Adoption d. Source credibility

Which of the following is most true about the use of correct English grammar?

A) It can get boring to listen to a person who uses perfect grammar. B) A speaker can convey a negative impression by using poor grammar. C) A bit of poor grammar won?t make a difference in a speech. D) Good grammar says little about a person?s intelligence.