Write about two similarities between the volunteer and the teachers in short.

we may need to pay but volunteer are free helping.

Volunteer teacher are their for a temporary time or they are also called substitute and the teacher is one who is their for a long time4 to 5 years or more

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.

answer; preominantly inattentive;