Anyone have opinions on a good comprehensive test to assess academic gaps and proficiencies in home school children? It would be for my own use for curriculum planning. I have found the testing to be pretty subjective in general, and as all the children are pretty far ahead, I am really looking for a way to make sure we are not missing anything. I am looking for something we can administer and use for targeting areas that need work or that we may have missed. I have been thinking about ITBS or CAT. All children can read, write and are past basic math/pre algebra and so any format would work. I am also looking for something that doesn't cost a fortune. My main goal is to get a comprehensive view of what they still need to learn.

Family Learning Organization might have something appropriate for what you need.

Local homeschool groups (if you have any around) may coordinate group testing at reduced rates. We had that option at the homeschool "school" that DD was attending. I think they used the STAR tests (Texas state standards, maybe?).