... and can speak and understand language very little. A neurological condition is usually the cause for their retardation. IQ tests are usually the main source of diagnosis. For a mild condition to be diagnosed, the IQ must fall between 50-70. Moderate follows at 35-50, then severe at 19-35, and finally profound ... with an IQ less than 20. The signs and symptoms of this condition can include the following: Symptoms appear before the child ... is 18 years old. Children with MR have low intelligence and have problems functioning in everyday life. They score very low on a test that measures ...

• Word Count: 1992
• Approx Pages: 8
• Grade Level: Undergraduate