Voluntary associations, operating at local, national, or regional levels, organized in pursuit of shared interests, but not seeking profit or public office are referred to as ______.

In order for us to study causal relationships among variables, it is necessary for

A) the independent variable to demonstrate variation. B) the dependent variable to be a constant. C) the independent variable to demonstrate that it is randomly distributed. D) there to be extraneous variation.

Which of the following was (were) used to ensure secrecy within the Bolshevik Party during the revolutionary stage?

a. Propaganda b. Salami tactics c. Cells d. Scapegoats e. Terror