(The vast majority of polling questions are closed-ended.) One example is the “most important problem” question. This is asked most commonly in the open-ended form used by the Gallup ...

At the bottom of this hierarchy are the close-ended questions with the least power. They elicit only "yes" or "no" responses. An example of a close-ended question is "Is the project progressing on ...

especially when they are posed in open-end fashion. It is no surprise that almost half of the questions in our sample were considered high-burden. Open-ended item nonresponse rates are positively ...