How did Francisco Pizarro gain control of the rich Incan empire? A. He married the Incan emperor's daughter and inherited the empire. B. His Spanish forces conquered the Incas in warfare and brought fatal diseases. C. He convinced the Incan emperor that he was one of the gods of the Incan religion. D. He first destroyed the Inca's Native American enemies so the Incan emperor would think Pizarro was an ally.​

answer:

d. because dr. laguardia selected a widely used measure, his study generalizes to has strong external validity. external validity has limited external validity. other applications of this measure.

the widely used measure that he applied to his experiment was the benton facial recognition test. it employed on to football players and as result, only players who suffered brain concussions did not pas this test. and although it has an external validity, it is limited because it isn't general to apply to other population.

most cajuns resided in acadiana, where their descendants are still predominant