Key predictors for student success include
how many school-age siblings the student has
socioeconomic status and family background
the age of the student when she or he enters kindergarten
how many students attend the school

Key predictors for student success include socioeconomic status and family background.

socioeconomic status and family background

Explanation:

Key predictors of student success include socioeconomic status and family background. This is because students in precarious socioeconomic situations cannot devote themselves solely to their academic activities, because they often need to help the family survive economically, many of these students even have to drop out of school to help the family. The same is not true of students of good socioeconomic status, as they have the privilege of devoting themselves solely to studies.

Similarly, family background is also considered a key predictor of student success, since once only the elite of society had access to education, this elite encouraged their descendants to study with great dedication and become influential family antecedents to this day. Those who do not have this elite as a family background came from a family that always had to fight to survive and ended up leaving their studies.

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 is the third one.