How was the KeyMath 3 Diagnostic Assessment normed?
Normative data were obtained in 2006, with a large sample consisting of approximately 4,000 individuals representing U.S. demographics by sex, race, socioeconomic status, region, and disability condition. The norm sample ranges in age from 4 years 6 months through 21 years 11 months. Both age norms and grade (fall and spring) norms are available.
