Where do shiite muslims mostly live?

Islam is historically divided into two major sects, Sunni and Shia Islam, each with its own sub-sects. Large numbers of Shia Arab Muslims live in some Arab countries including Lebanon, Yemen, Iraq, Saudi Arabia, Kuwait, Oman, the UAE, and Qatar. Shia Muslims are a numerical majority in Iraq and Bahrain.

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.