How many independent variables are in this experiment?
a) one (time of day)
b) one (dose of drug)
c) two (species and dose of drug)
d) two (time of day and dose of drug)
D
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Hoffman would not consider the bombings of Hiroshima and Nagasaki to be acts of terror because __________
a. they were perpetrated by a state b. they were not intended to have psychological effects c. they were conducted in wartime d. both cities were military targets
How has the office of vice president changed over the years?
a. The vice president is no longer trusted as he once was. b. The vice president recently has been locked out of the policymaking process. c. The vice president has been more involved in the policymaking process in recent years than in the past. d. The vice presidency has become a prerequisite for the presidency.