To clarify, the Iowa Acceleration Scale (IAS) is not a test, rather it is more of a survey form, gathering various inputs including:
- IQ test scores,
- aptitude testing (2 grade levels ahead, ACT/SAT are examples),
- achievement testing (Iowa Tests of Basic Skills (ITBS) is one option),
... to help guide discussion about the best grade-level placement for a child. The scores of tests used to apply for the DYS program can, in general, be entered into the IAS.