The Department of Homeland Security developed a precursor to the Internet known as ARPANET

The major difference between the control groups of the pretest-posttest, natural control group design and the randomized, posttest-only, control-group design is that

A) in the latter, participants are randomly assigned to groups. B) in the former, the people in the control group are aware of the research hypothesis. C) in the latter, participants are only assigned randomly to the experimental group, but not the control group. D) there is no real difference between the two designs.

______ refers to a tool of foreign policy that involves sending financial and development assistance to other countries.

Fill in the blank(s) with the appropriate word(s).