Johnny has prepared and practiced an excellent presentation, but he's so convinced that he will get nervous that he actually gets himself nervous before and during his presentation. this exemplifies what common cause of communication anxiety?

answer; when one group has an extremely high score at pretest;

manifest functions are the recognized and intended consequences of any social pattern, while latent functions are those unrecognized and unintended consequences. to analyze the manifest functions of any social institution, we have to study its contribution to the continuation of a group, community, or society.