The fact that Great Britain had a _________ government was an important contributor to the adoption of the Articles of Confederation in the aftermath of the American Revolution

The way to avoid confounding two variables is to

A) Vary measurement procedures throughout. B) Hold constant the variable the researcher is most interested in. C) Be especially aware of possible cohort effects. D) Make sure the variables vary independently.

__________ is the name of the provision in Article I, Section 8 of the Constitution that gives Congress implied powers not otherwise enumerated

a. Eminent domain b. Necessary and proper clause c. Pocket veto d. Reapportionment clause