tommy was outside cutting the grass. When he finished, he drank about half of a glass of water and sat the glass on a picnic table. Tommy forgot he sat the glass there and didn't go and get it for several hours. When he FINNALY remembers to take the glass inside, there is not as much water in the glass as when he first sat it down. what happend to the water (this is actually science but they didn't have that option pls answer me)

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.

i think it's b or c hope this

you should think about the answers you give and expect the same form your questions.