Which of the following best describes the naacp? a. an organization created to combat poverty in the united states and was created by lyndon b. johnson b. an organization created to combat the spread of communism in the caribbean after the cuban missile crisis c. an organization that worked toward equal rights for african americans during the 20th century d. an organization that worked to gain voting rights for woman during the 20th century

i would say d tho   ctfvygbuhinjmlk

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.