What IQ is borderline intellectual functioning?
The term borderline intellectual functioning describes a group of people who function on the border between normal intellectual functioning and intellectual disability, between 1 and 2 standard deviations below the mean on the normal curve of the distribution of intelligence, roughly an IQ between 70 and 85.
What range indicates the borderline level of IQ?
Persons with a mild intellectual disability (MID; intelligence quotient (IQ) range 50–69) or borderline intellectual functioning (BIF; IQ range 70–85) are vulnerable for problems in different domains.
How do you explain borderline intellectual functioning?
Borderline intellectual functioning (BIF) is characterized by heterogeneous cognitive difficulties, with an intelligence quotient (IQ) between 70 and 85 points, and a failure to meet the developmental and sociocultural standards for personal independence and social responsibility required in daily life.
What is mental retardation caused by?
Causes of mental retardation include fetal alcohol syndrome and fetal alcohol effect; brain damage caused by the use of prescription or illegal drugs during pregnancy; brain injury and disease; and genetic disorders, such as Down syndrome and fragile X syndrome.
Is mental retardation genetic disorder?
Mental retardation is caused by a number of different factors. Among genetic disorders, Fragile X syndrome and Down syndrome are the commonest causes of mental retardation. Fragile X syndrome (FXS) is an inherited form of mental retardation.
Which mental illnesses are genetic?
Even so, researchers keeps searching for disorders that are more likely to “run in the family.” A 2013 study by the Cross-Disorder Group of the Psychiatric Genomic Consortium found that five major mental disorders — autism, attention deficit/hyperactivity disorder (ADHD), bipolar disorder, major depressive disorder and …