A speech to persuade: Group of answer choices influences the audience by presenting arguments intended to change attitudes, beliefs, or values amuses the audience by engaging them in a relatively light-hearted speech increases the audience's knowledge about a topic or issue shows the audience the necessary steps taken in order to use, operate, or do something.

influences the audience by presenting arguments intended to change attitudes, beliefs, or values

Explanation:

The goal of a persuasive speech is to change the audience idea about something: to change their beliefs, attitudes, or values, and the best way to do so is by presenting arguments that are strong and convincing.

answer:

d. because dr. laguardia selected a widely used measure, his study generalizes to has strong external validity. external validity has limited external validity. other applications of this measure.

the widely used measure that he applied to his experiment was the benton facial recognition test. it employed on to football players and as result, only players who suffered brain concussions did not pas this test. and although it has an external validity, it is limited because it isn't general to apply to other population.

because he had a big bear belly