Consider this example (from the Youth Risk Behavior Survey):

1. If you have ever used any other type of illegal drug, such as LSD (acid), PCP,
mushrooms, Special K, or ecstasy, how old were you when you first tried it?
(Check one)

___ I have never tried any other illegal drug.
___ 8 years old or younger
___ 9 or 10 years old
___ 11 or 12 years old
___ 13 or 14 years old
___ 15 or 16 years old
___ 17 years old or older

• The phrase ". . . how old were you when you first tried it "comes after the definition (such as LSD. . .).
• Clear instructions are included (Check one).
• Response options are ordered from less (never) to more (17 years or older).