the level of achievement one reaches and how it stacks up against those scores determined to be conventional or average for that persons age

ACHIEVEMENT AGE (AA): "Abby's doctor was concerned that Abby wasn't reaching the standards posed for her achievement age and though it might be best to screen her for a learning disability."
Cite this page: Nugent, Pam M.S., "ACHIEVEMENT AGE (AA)," in, April 7, 2013, (accessed January 21, 2018).