A design exposes participants to all levels or conditions to of the independent variable

When national leaders must simultaneously negotiate with other nation-states and with domestic constituencies they are said to be engaging in

a. a two-level game. b. dual diplomacy. c. divided loyalties. d. a bifurcated discussion.

In the process of deciding how large to make a sample, researchers usually assume that there will be minimum variation in the variables

Indicate whether the statement is true or false.