<p>I'm not really asking if she can prep, but rather about the percentiles. If she's in a particular percentile as a freshman being compared to sophomores (as the report says), when in sophomore year she is compared to other people the same year as she, would the percentile generally improve? Also (which was answered), does prep really help or would a kid improve percentiles from year to year? I guess I'd always assumed that with no prep the kid would stay at the same percentile from year to year as she gets older. You can tell I'm lost, right? zoosersister came home with PSAT scores today. She scored in the 92nd percentile of sophomores and I was wondering (generally) if that 92nd would have been higher if she were only compared to other freshman. This is clearly not pressing, but Zoosergirl never took the PSAT before junior year and Zoosersister was required.</p>