Our society has identified two extremes in intelligence. how are these differences identified?

The two extremes in knowledge levels that our general public has characterized are;

intellectual disability (essentially lower than normal insight) and giftedness or talent (far better than expected insight).

Individual extremes for measures of knowledge are frequently distinguished through scores on insight tests. People having an IQ over 130 are regularly named as talented, while people scoring 70 or lower on an IQ test are frequently marked as having a scholarly incapacity.