A male college student begins feeling sad and lonely. Althou…

A male college student begins feeling sad and lonely. Although still able to go to classes and work at his job, he finds himself feeling down much of the time and worrying about what is happening to him. Which part of the definition of abnormality applies to his situation?

Amanda is 12 years old, and her sister Samantha is five year…

Amanda is 12 years old, and her sister Samantha is five years old. While riding in a car with their parents, the girls witness a major automobile accident where a number of people are injured. The girls react very differently to the accident. This is probably due to