Something pertaining to norms — something normal or typical — can be described as normative. Temper tantrums, whining, and even hitting are all normative behaviors — if you're three. If you're thirty, you might have a problem.
The adjective normative can also mean prescribing rules or standards. The U.S. government's normative rules for living in American society mean that you have freedom of speech, for example, but you don't have the right to slander or libel someone. The words "norm" and "normal" are related to normative, which comes from the French normatif, which itself is from the Latin word norma, "a carpenter's square."
