<p>The best students are more likely to attend a distant college, and the number of top-notch students varies greatly by state, in a way that is related to but distinct from the average academic achievement by state. The National Merit PSAT qualifying score varies greatly by state, in order for each state to have the same percentage of test-takers qualify (I think). See [National</a> Merit Scores | National Merit Qualifying Scores](<a href=“http://www.studypoint.com/ed/national-merit-scores/]National”>National Merit Scores) .</p>
<p>The states with the highest qualifying scores are
221 Massachusetts
221 Washington D.C.
221 New Jersey
220 California</p>
<p>Have the mobility analyses in this thread accounted for differing frequencies by state of high-end scores?</p>