Which federal law enforcement agency is primarily responsible for enforcing laws concerning the sale and possession of illegal drugs?

Bleiberg et al. (1993) studied a man who had experienced brain injury in a motorcycle accident. The researchers administered one drug on days 1 and 4, a different drug on days 3 and 5, and a placebo on day 2 in a double-blind procedure

Such a plan illustrates a. a multiple baseline design. b. a panel study. c. an N of 1 randomized clinical trial. d. a cohort-sequential study.

Although they are instruments of majoritarian democracy, initiatives are often sponsored by

A) government officials. B) interest groups. C) members of the judiciary. D) foreign multinational corporations. E) small numbers of average citizens.