All authoritarian regimes use brute force to suppress civil liberties and personal freedoms

More than any other kind of research project, program evaluation requires

A) control of possible confounding variables. B) political and communication skills on the part of the researcher. C) careful analyses of statistical data. D) representativeness of samples.

At one time, there were more than 100,000 school districts in the United States, but by 2007, that number had decreased to

a. fewer than 14,000 b. about 50,000. c. about 40,000 d. fewer than 10,000.