As of 2011, which region of the world has hosted the most UN Peacekeeping Missions?

Since the early twentieth century, the protections of the Bill of Rights have been __________ to cover __________.

A. reduced; only the national government B. reduced; only state and local governments C. extended; state and local governments D. extended; the national government

If researchers were interested in studying the effects of New York State's raising of the drinking age to 21 on traumatic brain injury, what type of research design would be ideal?

A) a standard 2 X 2 factorial B) an equivalent control-group design C) a between-subjects design D) an interrupted time-series design