In states that require standardized testing for homeschoolers, lots of people use either the Peabody test or WJ-III. Both are popular since they are quick, mostly oral, nationally normed and cheap. As far as I recall PIAT(non-DYS) is in the 50-100$ range and WJ-III is somewhat more maybe 75-150$ depending on whether its the standard or extended test. These are local prices in MN but you an probably find something similar if your testing through your psych is going to be substantially more.
Good Luck.
