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What does AA stand for?

AA stands for Achievement Age

This definition appears somewhat frequently

See other definitions of AA

Other Resources:
We have 145 other meanings of AA in our Acronym Attic

Samples in periodicals archive:

The preschool experiences both at home and in the preschool itself had consequences for longer term development in maths achievement age 10," said Melhuish, "This is the first study which demonstrates preschool effects that are long term in nature for the general population.