<p>I don’t think this anecdote is evidence for or against practicing. It is hard taking into account subjective factors when doing practice as opposed to actual tests. Some find the fact that the test is real make them focus better; others find it intimidating and get flustered. Whichever way, practice scores are not necessarily a good guide to actual scores. </p>
<p>But your D was correct in thinking that she was not going to learn more by studying for the SAT if she was already familiar with the format and the expectations, and the time between tests was short.</p>