James is very confident he will succeed in life and knows that everyone thinks he is great. James is just a teenager but is sure he will offer the world some invaluable knowlege. What describes this adolescent's way of thinking?
A) James is self-conscious.
B) James has a growth spurt.
C) James is mentally curious.
D) James has a personal fable.

a. James is self-conscious

Explanation:

James boast in his abilities for the future despite his age shows he's self conscious; He knows what he can do.

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.