If a persuasive speaker causes you to become uncomfortable with your own position or view on an issue, the speaker has successfully used a strategy known as cognitive dissonance

This inventor of the telegraph talked Congress into spending $30,000 to string electricity-conducting wire 41 miles from Washington to Baltimore

A) Thomas Edison B) Samuel Morse C) Emile Berliner D) William Dickson

Which of the following is an example of a captive audience?

A) a church congregation B) students at an anti-war rally C) business people at a Rotary luncheon D) a group of voters at a political rally E) students at a required assembly