All evidence is of equal quality

Presentation aids do all of the following EXCEPT

A) contribute to credibility and confidence. B) reinforce your message. C) increase communication apprehension. D) help you gain attention and maintain interest.

Which theory explains the influence of people's desire to achieve a positive identity on their attitudes toward their ingroup members and outgroup members?

a. Identity development theory b. Ethnolinguistic identity theory c. Social identity theory d. Identity management theory