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Mental Retardation
Mental retardation is a term used when a person has certain limitations in mental functioning and in skills such as communicating, taking care of him or herself, and social skills. These limitations will cause a child to learn and develop more slowly than a typical child. Children with mental retardation may take longer to learn to speak, walk, and take care of their personal needs such as dressing or eating. They are likely to have trouble learning in school. They will learn, but it will take them longer. There may be some things they cannot learn.

Educational Implications

A child with mental retardation can do well in school but is likely to need individualized help. Fortunately, states are responsible for meeting the educational needs of children with disabilities.

For children up to age three, services are provided through an early intervention system. Staff work with the child's family to develop what is known as an Individualized Family Services Plan, or IFSP. The IFSP will describe the child's unique needs. It also describes the services the child will receive to address those needs. The IFSP will emphasize the unique needs of the family, so that parents and other family members will know how to help their young child with mental retardation. Early intervention services may be provided on a sliding-fee basis, meaning that the costs to the family will depend upon their income. In some states, early intervention services may be at no cost to parents.

For eligible school-aged children (including preschoolers), special education and related services are made available through the school system. School staff will work with the child's parents to develop an Individualized Education Program, or IEP. The IEP is similar to an IFSP. It describes the child's unique needs and the services that have been designed to meet those needs. Special education and related services are provided at no cost to parents.

Many children with mental retardation need help with adaptive skills, which are skills needed to live, work, and play in the community. Teachers and parents can help a child work on these skills at both school and home. Some of these skills include:

  • communicating with others;
  • taking care of personal needs (dressing, bathing, going to the bathroom);
  • health and safety;
  • home living (helping to set the table, cleaning the house, or cooking dinner);
  • social skills (manners, knowing the rules of conversation, getting along in a group, playing a game);
  • reading, writing, and basic math; and
  • as they get older, skills that will help them in the workplace.

Supports or changes in the classroom (called modifications) help most students with mental retardation. Some common changes that help students with mental retardation are listed below under "Tips for Teachers." The resources below also include ways to help children with mental retardation.

Characteristics

There are many signs of mental retardation. For example, children with mental retardation may:

  • sit up, crawl, or walk later than other children;
  • learn to talk later, or have trouble speaking,
  • find it hard to remember things,
  • not understand how to pay for things,
  • have trouble understanding social rules,
  • have trouble seeing the consequences of their actions,
  • have trouble solving problems, and/or
  • have trouble thinking logically.

About 87% of people with mental retardation will only be a little slower than average in learning new information and skills. When they are children, their limitations may not be obvious. They may not even be diagnosed as having mental retardation until they get to school. As they become adults, many people with mild retardation can live independently. Other people may not even consider them as having mental retardation.

The remaining 13% of people with mental retardation score below 50 on IQ tests. These people will have more difficulty in school, at home, and in the community. A person with more severe retardation will need more intensive support his or her entire life. Every child with mental retardation is able to learn, develop, and grow. With help, all children with mental retardation can live a satisfying life.

 
   
 
IDEA Definition
 
  Mental retardation is marked by significantly subaverage general intellectual functioning, existing concurrently [at the same time] with deficits in adaptive behavior and manifested during the developmental period, that adversely affects a child’s educational performance.  
 
Info
 
 
For more information, visit NICHCY.org
 
 
Diagnosis
 
  Mental retardation is diagnosed by looking at:

  the ability of a person's brain to learn, think, solve problems, and make sense of the world (called IQ or intellectual functioning); and

  whether the person has the skills he or she needs to live independently (called adaptive behavior, or adaptive functioning).

More >

 
 
Links
 
  CDC page on Mental Retardation

National Down Syndrome Congress

National Down Syndrome Society 

National Fragile X Foundation

The Developmental and Fragile X Resource Center

 

 
 
Incidence
 
As many as 3 out of every 100 people in the country have mental retardation (The Arc, 2001). Nearly 613,000 children ages 6 to 21 have some level of mental retardation and need special education in school (Twenty-fourth Annual Report to Congress, U.S. Department of Education, 2002). In fact, 1 out of every 10 children who need special education has some form of mental retardation.

 

 
Causes
Doctors have found many causes of mental retardation. The most common are:
Genetic conditions. 
Sometimes mental retardation is caused by abnormal genes inherited from parents, errors when genes combine, or other reasons. Examples of genetic conditions are Down syndrome, fragile X syndrome, and phenylketonuria (PKU).

Problems during pregnancy.
Mental retardation can result when the baby does not develop inside the mother properly. For example, there may be a problem with the way the baby's cells divide as it grows. A woman who drinks alcohol or gets an infection like rubella during pregnancy may also have a baby with mental retardation.

Problems at birth. 
If a baby has problems during labor and birth, such as not getting enough oxygen, he or she may have mental retardation.

Health problems. Diseases like whooping cough, the measles, or meningitis can cause mental retardation. Mental retardation can also be caused by extreme malnutrition (not eating right), not getting enough medical care, or by being exposed to poisons like lead or mercury.

 

 
 

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