Is 111 a good IQ for a 15-year-old girl?

Generally IQ (Intelligent Quotient)is determined by standardized tests such as Wechsler Intelligence Scale for Children - III. Scores between 90 and 110 are considered within the average range. So a 111 is a good score. The test and scoring scheme already take age into account, and 100 is the average score. IQ tests and scoring systems are orangized in such a way that 50% of the population in the age group scores between 90 and 110, with 25% above and 25% below. So a score of 111 puts you just in the top 25% of your age group.