The idea of public policy is an example of government's ability to establish

A researcher studies the relationship between political attitudes and income. The researcher had to conduct telephone interviews with higher income participants while interviews with lower income participants were conducted in person

The researcher finds that those with higher income are more conservative. The results of the study are A) Scientifically proven. B) Valid. C) Possibly confounded. D) An example of an ex post facto fallacy.

For centuries, the global currency that had value in all countries was __________

A) the U.S. dollar B) the British pound C) precious metals D) the tolar