Gifted Issues Discussion homepage Forums Identification, Testing & Assessment TOMAGS score

The TOMAGS uses standard scores with mean = 100, and standard deviation = 15. So 148 is 99.9th %ile, presumably in the general population. (There are two sets of norms for the TOMAGS: general population and GT. A standard score at or above 100 on the GT norms would indicate strong likelihood of math giftedness, while a score around 100 on the general pop norms would indicate low likelihood.)