The new challenge measures a dog's intelligence through exercises designed to assess memory, problem-solving and reasoning ...

Since the latter part of the 19th and early 20th centuries, intelligence tests have attempted to measure human intellectual capabilities. The most common assigns an intelligence quotient, or IQ, score ...

Most adults never have to take an IQ test. But tests for assessing students’ cognitive abilities, such as the cognitive ability test (Cat), are used in schools around the world. These tests are very ...

Intelligence quotient, usually shortened to IQ, is a measure of how well someone uses information, logic, and reasoning compared to their peers. The first test for measuring IQ was developed by ...

This 1937 version of the Stanford-Binet Intelligence Scales was produced in the United States. It used objects because this IQ test was aimed at children. Credit: SSPL/ Getty Images The Hechinger ...