Mental retardation

• failure to meet intellectual developmental markers
• persistence of infantile behavior
• lack of curiosity
• decreased learning ability
• inability to meet educational demands of school

Note: Variations in normal adaptive behaviors depend on the severity of the condition. Mild retardation may be associated with a lack of curiosity and quiet behavior. Severe mental retardation is associated with infantile behavior throughout life.

• development significantly less than that of peers
• an intelligence quotient (IQ) score below 70 on a standardized IQ test
• adaptive behavior score below average
• abnormal Denver developmental screening test

Email this page  Printer friendly  Bookmark this page