The two types of independent variables are

This landmark Supreme Court case expanded the powers of the national government by finding the government had "implied" powers in addition to the enumerated powers found in Article 1, Section 8 of the Constitution

a. Marbury v. Madison b. Baker v. Carr c. McCulloch v. Maryland d. Gibbons v. Ogden e. Barron v. Baltimore

The Zimbardo study

a. collected DNA samples from infants born in U.S. hospitals without parental knowledge or consent. b. was one in which some members of the study acted so aggressively toward others that the study was terminated prior to its planned time for completion. c. is often cited by anti-war advocates to argue that human nature appears to be thoroughly peaceful and lacking in impulses toward violence. d. was funded by the U.S. government and involved exposing cancer patients to high doses of radiation.