Explanation:

Multiple choice questions, where respondents are restricted to choose among any of the given multiple choice answers are known as closed format or closed-ended questions. There is no fixed limit as to how many multiple choices should be given; the number can be even or odd.

One of the main advantages of including closed format questions in your questionnaire design is the ease at performing preliminary analysis. These questions are ideal for calculating statistical data and percentages, as the answers set is known. Closed ended questions can also be asked to different groups at different intervals to efficiently track their opinion about a product/service/company over time. Closed-ended questions can be further classified into 7 types.