Which of the following is an ongoing problem in brazil? a. a highly educated population with no job market b. class riots between the wealthy and poor in cities c. a high poverty rate for average citizens d. natural disasters such as tornadoes

The answer is C. a high poverty rate for average citizens

C. a high poverty rate for average citizens

Explanation:

answer; researchers typically cannot control people's sexual behaviors as would be necessary in an experiment;

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.