normal iq of a child
Interpreting Your Childâs IQ Score. According to the National Association for Gifted Children, a score between 90 and 110 corresponds to the 50th percentile of the populationâin other words, an average score.The top tier, represented by 2 to 3 percent of the population, scores higher than 130.ccording to the National Association for Gifted Children, a score between 90 and 110 corresponds to the 50th percentile of the populationâin other words, an average score. The top tier, represented by 2 to 3 percent of the population, scores higher than 130.