It, too, should be banned from use on school property, considering how it includes a leading question that is, to say the least, egregiously invasive of another person's privacy.
One leading question is how dubious science, shoddy economics and tried-and-failed socialist policies have come to dominate the democratic process in so many countries for so long.
The big differences between studies exemplifies the problems in conducting a neutral and broad study without asking leading questions on the particular subject.