Autism is a set of developmental disabilities that can cause social, communication, and behavioral changes. Autism affects people from every race, ethnicity, and socioeconomic status. The signs of autism begin before the age of three, but some children can show signs of autism within their first year of life. Autism can range from mild to severe and can affect people in different ways. The onset of symptoms can be different than another person. Also, how severe, how many symptoms there are, along with if there is more than one problem present are other differences (2012).