Gifted Issues Discussion homepage Forums Identification, Testing & Assessment WIAT vs. WJ Ach. - your experiences?

I have had children take both WIAT and WJ achievement tests.

Generally, I'd say that WJ allows for much more ceiling as the scores can be far above 160 and WIAT maxes at 160.

If you are looking for DYS qualification, either works. If you are looking for a real sense of level, I don't think either works at all. The results are crazy for advanced kids -- post high-school math and reading levels in elementary for WJ. Same issue for WIAT although not sure the levels are quite as excessively elevated.