If you are interested in any possible interaction effects between an extraneous variable and the independent variable, which of the following techniques you should use?
a. matching by holding the extraneous variable constant
b. matching by making the extraneous variable into another independent variable
c. matching by equating participants
d. counterbalancing
B
You might also like to view...
Which of the following constitutes a significant, contemporary challenge to U.S. foreign policy efforts in nation building?
a. The United States is no longer in a position to provide large amounts of foreign aid to countries because of the current federal deficit. b. Today many countries led by dictators are deeply divided, and citizens who call for democracy are subjected to military force. c. There is no clear goal behind helping countries rebuild after a dictator has been removed from control. d. Most countries needing help today have very negative attitudes toward the United States.
Which group enjoyed the greatest influence in Iraq’s government after the end of the U.S. intervention in that country?
a. Sunni Muslims. b. Iraqi Kurds. c. The Taliban. d. Shia Muslims.