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.
One must also be at least 35 years of age to be president. John F. Kennedy was the youngest person to be elected president; he was 43 years old when he was inaugurated in 1961. There is no maximum age limit set forth in the Constitution. Ronald Reagan was the oldest president; at the end of his term in 1988, he was nearly 77.