Some liberalists have argued that introducing communication to the Prisoner's Dilemma in the form of a lawyer that can relay messages between both prisoners could change the payoff matrix in favor of cooperation

For what primary reason did mixed race individuals and parents of mixed race children object to the U.S. Census Bureau’s “check one box” policy?

A. The selection of races was too wide to pinpoint one accurately enough. B. They were forced to select a box that they believed would carry the highest status. C. It left them with only a meaningless “multiracial” box as a choice. D. It forced them to select a singular aspect of their racial identity.

A valid hypothesis must be empirical and __________.

Fill in the blank(s) with the appropriate word(s).