A professional economist and close associate of the Wandering Academic (he is Nate Clinton, a director of product management at Thomson Reuters, former analyst at the Federal Reserve) has done a short analysis of the School Rankings numbers. The results?
A commenter hypothesized that IB diploma scores and SAT composite averages were uncorrelated. It turns out that (s)he is maybe right — the two series have a weak positive correlation, but the standard error is high, and the relationship is only significant at the 80% level.
See: Arugula Designs analysis for full visualization and comments
