Reply to Did MCPS do a sneaky thing for the magnet lotteries?

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Reply to "Did MCPS do a sneaky thing for the magnet lotteries?"

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[quote=Anonymous][quote=Anonymous][quote=Anonymous]We did see 2 years ago that there was a big difference in local norms. A child who scored 97th percentile in MAP would only be 90th in the wealthy band but in the low SES band you could score 75th percentile and actually be 90th percentile.
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Do you have data for this?  I recall that 2 years ago we were looking at locally normed CogAT, not MAP tests.  It is important to realize that the local norms didn't include the full MCPS population, just those who were identified and tested for admission.  So yes, a 97th percentile nationally was lower in the local norming because the local norming population had already been pre-screened and already represented only the top half of the population.  I do not recall any instances where 75th percentile nationally was 90th percentile locally, and I don't believe that is true; in fact, I don't remember any reports of a national percentile being dramatically lower than a local percentile, but maybe I'm forgetting.  [/quote]

Here's the actual thread from 2 years ago (my kid was part of this group, so I remembered the thread) -- scores were reported starting on page 9 or 10: https://www.dcurbanmom.com/jforum/posts/list/120/792860.page
I flipped through about 8 pages and there were no reports of a national percentile being lower than a local percentile.[/quote]

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