Low Intelligence Quotient
Children with mental retardation typically have an intelligence quotient below 70, with 85 to 115 being the average intelligence quotient for all people. Scores from 50 to 69 indicate mild mental retardation, scores from 35 to 49 indicate moderate mental retardation, scores from 20 to 34 indicate severe mental retardation and scores lower than 20 indicate profound mental retardation. Intelligence quotient scores can be obtained through nonverbal tests such as the Tony or through both verbal and nonverbal tests such as the WISC or RIAS.
Children with mental retardation often recognize that they have difficulties with tasks that others find easy. This realization can lead to frustration, anger and depression. Some children with mental retardation may suffer from anxiety. These children may act out due to these emotions. They may have trouble expressing their feelings and may show their feelings in ways such as refusing to eat or sleeping too much.
Mental Retardation Classifications
Those children who are mildly mentally retarded are considered to be educable and may be able to achieve up to the 6th grade level. Individuals who are moderately mentally retarded are considered to be trainable, which means they can learn to complete daily living skills. However, they will probably not be able to understand academic concepts. Those children who are severely or profoundly mentally retarded will often require supervision and help with daily living skills for the duration of their lifetime.
Read more: Characteristics of Mentally Challenged Children | eHow.com http://www.ehow.com/about_5127734_characteristics-mentally-challenged-children.html#ixzz2QUmdTsOV