An intelligence quotient (IQ) is a total score derived from several standardized tests designed to assess human intelligence. The abbreviation IQ was coined by the psychologist William Sterne for the German term Intelligenzquotient, his term for a scoring method for intelligence tests at University of Breslau he advocated in a 1912 book.
Answer: Ronald Reagan became the oldest president when he was elected in 1980 at the age of 69.
The oldest living president is George H. W. Bush, born June 12, 1924 (aged 7009291444480000000â 92 years, 129 days). Jimmy Carter is the second-oldest, 111 days younger than Bush. Carter was born October 1, 1924 (aged 7009290485440000000â 92 years, 18 days).