<p>Ahh damn, I’ve never really understood those percentiles, what exactly do they mean…?</p>
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<p>Your percentile indicates the percent of test-takers whom you did better than.</p>
<p>Thanks silverturtle, so a percentile in the 70’s isn’t that good is it :(</p>
<p>^ It’s not great, but it certainly doesn’t mean that 3/10 of the population is better at chemistry. The test-taking populations are highly self-selecting.</p>
<p>To add onto what Silverturtle said, this report may provide some reassurance that your “70s” percentile is in a different context than it would be in the normal SAT: <a href=“http://professionals.collegeboard.com/profdownload/cbs-2009-national-TOTAL-GROUP.pdf[/url]”>http://professionals.collegeboard.com/profdownload/cbs-2009-national-TOTAL-GROUP.pdf</a> (Page 14)</p>
<p>Of all those who took the Chemistry SAT II:</p>
<p>*Mean CR score of 615 (Roughly 83rd percentile)
*Mean Math score of 675 (Roughly 90th percentile)
*Mean Writing score of 620 (Roughly 85th percentile)</p>
<p>That is to say, the average – the 50th percentile SAT II Chemistry taker – got in the 83rd percentile of CR, 90th percentile of Math, and 85th percentile of Writing. </p>
<p>Needless to say, your competition is much different than that of the SAT Reasoning Test, and a percentile in the 70s, while far from spectacular, is not poor in the least.</p>
<p>Also, the group which takes the test is self-selecting, and obviously, most are going to be pretty confident in their chemistry abilities.</p>