Two researchers are interested in studying how different settings for breakfast (classroom or cafeteria) affect elementary students breakfast consumption and attention in class. This type of study would utilize a ________ to study the students in a real-world setting.

Members of the Senate serve _______ year terms

Fill in the blank(s) with the appropriate word(s).

Who were the Bolsheviks?

a) The party that took power in Russia, renamed the country the Soviet Union, and set up a dictatorship under the party's control. b) The Russian party that originally believed in the goal of socialist revolution, but abandoned that goal, settling for reforming capitalism. c) The party that lost power in Russia, was forced into exile, but later reemerged to help topple the Soviet Union. d) The socialist group that argued against the methods of the Russian Revolution of 1917.