Abnormal behavior is defined as a. pattern of thoughts that are not common b. pattern of behavior passed on through families c. pattern of thoughts that can lead to a problem d. pattern of behavior that causes people significant distress

The correct answer is d. pattern of behaviour that causes people significant distress. People usually confuse abnormal behavior with unusual behavior, but behaving in a way which out of the ordinary does not necessarily mean that a person suffers from a mental or psychological disorder. Abnormal behavior is often indicative of mental and psychological disorders. According to the The Encyclopedia of Clinical Psychology, a psychological disorder is defined as an "ongoing dysfunctional pattern of thought, emotion, and behavior that causes significant distress, and is considered deviant in that person's culture or society".

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.

well considering i can't see the graph, it's probably prices