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 US. President to be elected into the White House, and assumed office was Ronald Reagan. His age around that time was 69 years and 349 days old. He survived an assasination attempt and when he finished his second term as President, he was already 77 years old, so old but still very strong.