Iowahawk Takes The Wood To Krugman

As the Wisconsin saga drags on, leftys are now trying to convince the rest of us that unionized school systems perform better than non-unionized areas.  “So how does brokeass, dumbass, redneck Texas stack up against progressive unionized Wisconsin?”  Pretty well, once you control for the most obvious factor — ethnicity.

Whatever combination of reasons, the gap exists, and it’s mathematical sophistry to compare the combined average test scores in a state like Wisconsin (4% black, 4% Hispanic) with a state like Texas (12% black, 30% Hispanic).

So how to compare educational achievement between two states with such dissimilar populations? In data analysis this is usually done by treating ethnicity as a “covariate.” A very simple way to do this is by comparing educational achievement between states within the same ethnic group. In other words, do black students perform better in Wisconsin than Texas? Do Hispanic students perform better in Wisconsin or Texas? White students? If Wisconsin’s kids consistently beat their Texas counterparts, after controlling for ethnicity, then there’s a strong case that maybe Texas schools ought to become a union shop.

* * *

[Lots of numbers demonstrating the results]

To recap: white students in Texas perform better than white students in Wisconsin, black students in Texas perform better than black students in Wisconsin, Hispanic students in Texas perform better than Hispanic students in Wisconsin. In 18 separate ethnicity-controlled comparisons, the only one where Wisconsin students performed better than their peers in Texas was 4th grade science for Hispanic students (statistically insignificant), and this was reversed by 8th grade. Further, Texas students exceeded the national average for their ethnic cohort in all 18 comparisons; Wisconsinites were below the national average in 8, above average in 8.

(Emphasis added.)  Funny.  The left can see nothing but race when it is largely irrelevant, but is suddenly color-blind when ethnicity is the primary variable of importance.

Via Instapundit.

Published in: on March 3, 2011 at 11:24 am  Comments (1)  

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One CommentLeave a comment

  1. 1st. Only a Mangy redbone hound would believe that fact, logic, and common sense could convince a liberal or progressive of anything, much less change their mind.
    2nd. You are absolutely unfair to use detailed statistics to confound generalities and hyperbole.
    3rd. It should be intuitively obvious to the most casual observer that folks in Texas is smarter, no one other than a masochist wants to live thru a Wisconsin winter.
    Great blog! Keep Firing!

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