Interesting! I don't have an IQ score for my son but he did take the WIAT at age 7 and the educational psychologist gave us an estimated IQ score, so that is what I am going by. Looking at the grade level expectations for each age, it looks like my son has usually been slightly lower than the grade level it shows for math but higher than the grade level it shows in language arts, so if you could average the two it would be around the listed grade level and his best friends are about the same age as the mental age that is listed.
