Reply to If your fourth grader scored more than 280 in MAP-R, what does s/he read at home?

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Reply to "If your fourth grader scored more than 280 in MAP-R, what does s/he read at home?"

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[quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous]That report is from the samples, not from all the MCPS students. So it is possible that the max score in the report is not really the MAX.[/quote]

It's at least 10,000 kids per grade in the sample (see first column in Table 5) --- all kids who took spring MAP-R and PARCC ELA that year.  It's possible there's a kid who took MAP-R but not PARCC and isn't in the sample group, but the general idea still stands that a MAP-R of 288 in the spring of 4th grade would be an extreme outlier, both on the national norms (5.5 standard deviations above the mean using current norms, or one in 10 million) and within MCPS (4.6 SD above the mean using the data in that report, which is from 2014-15, or ~5 in a million).[/quote]

I agree it's rare but I don't buy that MCPS is that much higher than the national norms based on the charts they've published. What are you looking at that indicates otherwise? The data in my child's map report shows the district average as being maybe 2%-3% higher than the national.[/quote]

Yeah, in general I don't think there's a ton of difference between MCPS and the national norms, but I did the calculations by looking at the mean and standard deviations shown in the MCPS report compared to the ones reported nationally for the MAP tests.

For 4th grade spring MAP-R, the national 2015 mean/average (which would have been in place at the time of the MCPS report) was 205.9 with a standard deviation of 14.92 (data taken from [url=https://sites.google.com/view/nweapercentilecalculator]here[/url]).
The mean from the MCPS report was 210.0 with a standard deviation of 16.78.
So the averages are just a few points difference, but with a wider standard deviation in MCPS, so when you get ~80 points above the average (as the OP claims), that makes a difference.
(I'm a scientist who likes data and clearly I have spent too much time over the past decade that my kids have been taking MAP tests in trying to interpret their scores!)

Still doesn't change the fact that it is an incredibly rare score and, if accurate, something the OP should be discussing with the school.[/quote]

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