<p>She should take the SSAT in her 8th grade year, if she's applying for 9th grade. She could take the SSAT this year, but the scores are only valid for a year, so she would need to take it again next year anyways. 7th grade scores could give you an idea of her usual range on the SSAT--which is more challenging than state standardized tests. They could also help to identify any holes in her preparation. </p>
<p>The thread above gets sidetracked into SSAT theories, but the first post is a good timeline.
Use the search function on the prep school admissions forum to find other interesting threads.</p>
<p>Note that many schools have moved their applications online, and many schools accept common applications from the SSAT or the Association of Boarding Schools (TABS). </p>