It is common to find students new to psychology who believe the study of psychological disorders is psychology. These students are often disappointed to find out that it is only a small piece of what psychologists study and that they usually have to wait until the very end of the class to begin studying it. Moreover, once they get to this unit, students bring with them preconceived notions regarding psychological disorders. More and more, these notions have been shaped by a student’s own experience. Most all students know at least one person whose problem has been classified as a mental disorder and who is taking some sort of psychotropic medication to change the problem. Television advertisements, shows, their doctors, and other people they know have provided them with a lot of information, and for the most part they tend to believe what they have been told.