A survey was conducted to understand the attitude of university students to the dormitory in the school. The survey was conducted in two parts. One was to persuade and publicize half of the students beforehand, hoping to live in the dormitory, and then to conduct a questionnaire survey. The other half of the students were not asked to do anything. Explanation: Direct investigation. Before the investigation, a few of the college students strongly opposed the idea of living in the dormitory on campus. As a result of the investigation, the number of opponents of the half of the students who had persuaded and publicized beforehand increased. This sentence supports an argument, namely:. ['Living on campus is bad.', 'Half of the students support the idea of living on campus, and half of them disagree.', 'Persuasive propaganda before the investigation caused rebellious psychology among college students.', 'The conditions of dormitories on campus are worse than those on dormitories off campus.']