An average IQ score is 100. A score under 70 is considered mental retardation. Borderline mental retardation is generally around 70-85 - high enough not to be considered mentally retarded, but just barely.
In general, the characteristics are similar to mild mental retardation (50-70 IQ) but milder. The person may have difficulty learning in school. In adulthood, most can hold down a job that isn't highly intellectual, and they'll probably be able to live independently.
Borderline mental retardation is more significant when combined with other disabilities such as ADHD or learning disabilities. Since their overall skills are somewhat lower, any additional condition will send specific areas into the impaired range. So for example if a person with an IQ of 78 had a 20 point discrepancy in verbal versus performance IQ (which is often seen in specific learning disabilities such as dyslexia or nonverbal learning disability), the lower score will be in the mild mental retardation range. In addition, they have a harder time learning compensatory strategies, such as memorizing words if you struggle with decoding, that other people with similar disabilities can use.
Approximately 85% of the mentally retarded population is in the mildly retarded category. Their IQ score ranges from 50-70, and they can often acquire academic skills up to about the sixth-grade level. They can become fairly self-sufficient
About 10% of the mentally retarded population is considered moderately retarded. These people have IQ scores ranging from 35-55. They can carry out work and self-care tasks with moderate supervision
Only 1-2% of the mentally retarded population is classified as profoundly retarded. These individuals have IQ scores under 20-25. They may be able to develop basic self-care and communication skills with appropriate support and training
About 3-4% of the mentally retarded population is severely retarded. They have IQ scores of 20-40. They may master very basic self-care skills and some communication skills
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About one-third of individuals with CP have moderate-to-severe mental retardation, one-third have mild mental retardation, and one-third have normal intelligence.
Mental retardation has different levels. There is Mild intellectual disability; moderate intellectual disability; severe intellectual disability; and Profound intellectual disability.https://www.floridahospital.com/mental-retardation-mr/symptoms-and-signs-mental-retardation
Sometimes mental retardation is a genetic defect. Sometimes it is the result of injury.
IQ from 50 to 70 is 'Mild mental retardation'.
Mildly retarded people can live alone if necessary and often get married. Profoundly retarded people need caring in their whole life.
Some cases of mild mental retardation are not diagnosed before the child enters preschool. These children typically have difficulties with social, communication, and functional academic skills.
A full scale IQ of 53 would typically fall within the range of intellectual disability. Individuals in this range may have difficulty with everyday tasks and may require a significant amount of support and accommodation in various aspects of life. It is important for individuals with this level of IQ to receive appropriate interventions and support to help them thrive to the best of their abilities.
The old and still popular terms were adjusted downward from normal- Moron ( high and low grade) Imbecile, and Idiot. for some reason Moron and Idiot remain in popular usage but imbecile, even in slang usage is rarely used.
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There are some nursing homes in the country that will take a patient with mild mental retardation without any significant medical problems. A person may also check with assisted living facilities for this type of patient.
Overstudy does not cause mental retardation.