How did total war affect soldiers and those on home front in ww1?

Both civilians and soldiers are targets/ European women were mobilized to work outside of the home to replace men who went off to war

Explanation:

thomas jefferson

explanation:

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.