Update: A graph I made with the K-12 education performance listed on the aforementioned site but listed in the same order as the graph above by spending:
Not really seeing a correlation.
Update: More on spending vs. test scores here.
I have a BA in International Affairs and MA in International Trade and Investment Policy. I live in Washington, DC and work for a Fortune Global 500 company as a public policy analyst. I can be contacted at 2getrichisglorious-at-gmail.com.