Pilar incessantly thinks about all the germs and bacteria that could contaminate her. No matter where she is, or what she is doing, she finds she can't stop thinking about potential contamination. Pilar's uncontrollable thoughts illustrate the concept of:

Why is it thought that children with a difficult temperament are more likely to end up showing life-course-persistent antisocial behavior?

a. They have a certain defective gene. b. They have grown up under adverse circumstances. c. They evoke maladaptive reactions from their parents. d. Their brains are unable to form new neural pathways.

Which type of psychologist specializes in the psychological condition of students?

a. Comparative psychologist b. Forensic psychologist c. Human factors specialist d. School psychologist