Kidane was the middle child in the family. according to adler, kidane would most likely be:

Experiencing the middle child syndrome, and thus feels left out or excluded.

Explanation:

Middle child syndrome is a theory postulated by Alfred Adler, who believes that birth order affects an individual's personality. While the older child might feel more entitled while the younger feel more pampered, the middle child may feel as if he or she doesn't belong. The middle child, in this example, Kidane, might feel as if he or she doesn't have a clear role to play in the family.

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.

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