I get asked this question a lot. My parents ask, strangers (not that it's any of their business) ask, other homeschooling moms ask. Last year I thought I would be testing both of my kids at this time. Not so!
Now let's face it, having a baby in the middle of the school year is not conducive to lots and lots of school time. In thinking about it more, I came up with the ultimate question. Who would I be testing for? I know what subjects I have and have not introduced. I know how well my children know the material. I know the context of how I introduced the material. I know my one daughter is terrified of timed tests.
I know also that I disagree with a lot of what is taught in public school. One of the main reasons I homeschool is so that I am in control of the subjects my children study. I'm not talking about anything other than the order scientific and other ideas are taught. I am atheist so it's not like I teach my kids religion and call it school--which it is not.
You can see that there is no point in testing for myself. Should I test so I can wave aroung peices of paper for others? I'm not homeschooling for anyone other than my children. Should I trust that anyone other than myself has their best interests at heart?