An evaluation of whether the manipulation of the independent variable was effective is called a(n)

Political scientists use what term to refer to the proportion of eligible Americans who vote in a given election?

a. volume b. electoral population c. turnout d. caucuses

The main difference between the mayor-manager and the council-manager forms of city government is _____

a. the pay of the city manager b. whether the manager reports to the mayor or the city council c. the size of the city using the plan d. the lack of a city commission e. none of these