A score of more than 140 is counted as a high IQ, and a score of more than 160 is considered to be a genius IQ score. Average intelligence IQ scores range between 85 and 114.
Intelligence tests are based on the original test developed in the early 1900s by Alfred Binet. IQ scores are plotted on a bell-shaped graph known as a bell curve. The peak of the graph is where the average intelligence falls. A score of 1 to 24 denotes a person of profound mental disability. A person who scores 180 or more is considered profoundly gifted.