It should be that the definition of operability is too vague, that is, what is the attitude of eating in the canteen and what assumptions do you want to prove from it. From the title, you understand the attitude towards the canteen as the attitude towards the canteen and the attitude towards eating. These are two different tests. You don't know if these two test questions are related. When you design the questions, these two attitude questions don't intersect. The following questions refer to the attitude of eating, and some are suggestive. Participants tend to report their own good side, which is in line with social morality. Your fourth and fifth questions, such as 4-3, should be changed into two questions: I eat on time every day and I eat three meals a day. It is not a good thing to have too many objective questions like the fourth and fifth questions in the psychological test. You can go to the paper website and read more questionnaires designed by others.

Before designing the questionnaire, you should make a draft like writing a composition, set a good direction and divide the direction into small directions. What are the problems in each direction and what are the connections between them? In a word, designing a good questionnaire is quite laborious. Let's go

In fact, you can send this questionnaire to the students next to you and ask them to make suggestions after you finish it. If we can collect 30 copies for data analysis, we can see the problem from the scores. The data in the questionnaire can't fool people. This is the bloodiest and most direct way to improve the ability to design questionnaires.