An IQ score of 106 is considered average intelligence. The range of average intelligence is an IQ between 85 and 114. An IQ between 70 and 84 is indicative of borderline mental disability, whereas an IQ between 115 and 129 is considered above average or bright.
An IQ between 130 and 144 designates one as moderately gifted. An IQ between 55 and 69 indicates mild mental disability. The average score on an IQ test is exactly 100. The majority of people have an IQ between 85 and 115. Modern IQ tests are primarily based on the original IQ test developed by French psychologist Alfred Binet in the early 1900s.