When trying to understand why one of your students as a school psychologist is engaging in a specific behavior, you may think about the child's ego. Especially when working in a preschool, the school psychologist may encounter situations where a student's desires are simply not realistic, and the school psychologist must know that the child may not be aware of what reality and fantasy are when expressing your own desires. It is also important for the school psychologist to understand the superego because he or she will come into contact with many students who have different backgrounds and beliefs. Students learn what they believe is correct from their parents, so it is important when working with a child to know their cultural background and how they were raised.