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

d

Political Science

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The Declaration of Independence was based on input from many people, but its primary author was

a. James Madison. b. John Quincy Adams. c. Benjamin Franklin. d. George Washington. e. Thomas Jefferson.

Political Science

Why was President Johnson reluctant to request a tax increase to pay for the Vietnam War?

A) He felt it was an unjust and emotionally taxing conflict. B) He had just gotten a tax cut through Congress in 1964. C) He wanted to avoid blame for a war he knew the U.S. couldn't win. D) He saw U.S. involvement as the fault of the Kennedy administration.

Political Science