Suppose you live in an unincorporated area of the state. who would be your local government representative?

The answer is administrative division. An administrative division, element, entity, area or region, also referred to as, constituent unit, or country subdivision a subnational entity, statoid, is a portion of a country or other region delineated for the purpose of administration.

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.