While treaties are considered binding agreements between signatories, a major weakness of the use of treaties in international law is the fact that ______.

A researcher who wants confidence that research results pertain to the population of interest, not just to the sample, would want to

a. reduce experimenter bias. b. create multiple control groups. c. increase the level of internal validity. d. select participants by random selection.

The broad agreement on social policy during the 1950s and 1960s was known as

a. socialism. b. capitalism. c. the collectivist consensus. d. the individualistic consensus. e. a united front.