Oh, noooo !This is the third time I've seen this lame correlation posted on websites. Who is passing this nonsense around? You might as well be correlating those state scores with cold weather. Detroit has collective bargaining. California has collective bargaining. How are their SAT's? Because of race or racism in the south, many whites have already pulled their kids from public schools and put them in private 'academies'. The whites vote against funding for public schools because their kids don't use them. The resultant mostly black and underfunded schools do drag down test scores. Iowa and Wisconsin hardly even have blacks let alone segregated black public/white academy school systems. Texas, like California, has to spend much of it's money dealing with foreign language remedial instruction. I haven't read that California kids are doing better than Texan children despite California's affinity for teacher unions.
You should be supporting collective bargaining for Constitutional reasons like the right of workers to assembly into unions and speak. It is a better defense than such flimsy correlations.
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