The highest score possible is 145, and the lowest score possible is 61 scores between these two extremes represents just one standard deviation from the mean iq for that group. Most iq tests score an individual on a scale of 100. 7.2 What does it mean to have an IQ of 120 or higher?Īverage ‎IQ – Classification Table IQ test rangeįor people between 20 and 24 years of ageįor people between 24 and 34 years of ageįor people between 35 and 44 years of ageįor people between the ages of 45 and 54,.7.1 Which one is better: online or paper-based IQ tests?.7 Average intelligence – Genius level IQ.5 What IQ Scores Really Mean – Genius level IQ.