I sas this in the New York TImes today: A CBS News poll asked the following question:
Should U.S. troops stay in Iraq as long as it takes to make sure Iraq has a stable democracy, even if it takes a long time, or leave as soon as possible, even if Iraq is not completely stable?
I seem to recall some advice in the sample survey literature about not asking double-barrelled questions (here, the assumption that U.S. troops will “make sure Iraq has a stable democracy,” along with the question of how long the troops should stay). In any case, it seems like a good example of a problem with question wording.
Incidentally, the Times feature on this poll (it was only a paragraph, not a full article) did not point out the problem with the question wording, and it also featured a yucky graph (as Tufte would put it, “chartjunk”).