When did television become more prevalent in American households?
a. 1940s
b. 1950s
c. 1960s
d. 1970s
b
You might also like to view...
Retrospective voting is only relevant to incumbents
Indicate whether the statement is true or false.
Which of the following statements about the committee staffers who assist members of Congress is LEAST accurate?
A. Committee staffers tend to be older and more experienced than a congressperson's personal staffers. B. Committee staffers provide valuable expertise that helps members of Congress make better-informed decisions. C. Though they are not elected officials, committee staffers nonetheless sometimes take an active hand in drafting federal legislation. D. The average size of a Senate committee staff is about 50; that of a House committee staff, about 65. E. Appointments to a committee staff are split equally between the majority and minority parties in Congress.
Which of the following threats to external validity happens when the subjects learn information based on the pretest?
a) reactive arrangements b) multiple treatment interference c) experimenter effects d) pretest sensitization
The Fish and Wildlife Service list contained about ______ endangered and threatened species in 2009.
A. 200 B. 500 C. 800 D. 1,200