2. "I want to investigate the network", the column of investigation strategy, the design principles of the questionnaire, the problems that should be paid attention to in designing the questionnaire, the principles that should be followed, the structure of the questionnaire, the main points of setting the topic and so on are all very detailed and clear.
3. If you want a data report, you can post the designed questionnaire on the website I want to investigate, and the system of the website I want to investigate can also check the answers and statistics from time to time.