Autism, also known as autism spectrum disorder (ASD), is a neurodevelopmental disorder caused by abnormal functioning in social behaviors, language, communication skills, unusual behaviors and interests or fixations on unusual objects. Autism is a spectrum disorder as the symptoms, abilities and characteristics are expressed in various ways. There are many symptoms that coincide with autism. Therefore, there are several types of treatments that are effective in reducing the symptoms of autism. These treatments include the use of varying intensity between treatments, visual treatment, increasing social skills, behavioral treatments, use of operant conditioning, reinforcement treatments, and environmental treatment. To understand the implemented treatments of autism it is important to understand the diagnostic criteria along with the symptoms related to autism. This means that in order to be diagnosed with Autism Spectrum Disorder (ASD) according to the DSM V, a child must show delays in functioning during social interaction, language or play before the age of three. In addition to these criteria, individuals must exhibit core symptoms of ASD. This means that children must show a total of six or more symptoms listed in the diagnostic criteria for Autistic Disorder such as lack of emotional or social reciprocity, delays in language development, repetitive use of language, preoccupation with objects or parts of objects, or a lack of seeking to share enjoyment by pointing out objects of interest. While these are common symptoms of autism, autism expresses itself in various ways, so each individual may express symptoms in various ways. This means that… middle of paper… the form of therapy changes to another along with multiple routine changes. This is harmful as people with autism need to implement a daily routine as change is a struggle. Overall, the IBT group made substantially higher gains from treatment. This suggests that intensive behavior analytic treatment is a very effective form of treatment as it brought levels of functioning from below normal to normal levels. While there has been significant improvement in functioning with intensive early behavioral interventions (IBTs) such as Howard et al. (2004), these approaches are typically very expensive and effective if implemented early in life. However, Woo and Leon (2013) conducted a study that implemented a treatment that affects a significant number of autistic people along with individuals who are past the age where treatments are no longer effective..