You might want to reuse the same response list in a number of different questions. For example, the questions “Which of these products have you heard of?” and “Which of these products have you bought in the past week?” might have an identical list of products to choose from. To use the same list of responses for both questions, you can use a shared list. You can also base the lists of responses and subjects in grid questions on shared lists.

If you change to a shared list, the change applies to any questions that use the list, with some exceptions. For more information, see Editing a shared list.