At her blog, hbdchick has a discussion of the north-south division in Spain where she asks if there are any differences in IQ that show up. I suggested looking through the 2009 PISA results, which she did. To follow up, I decided to map out the results for Spain and Italy. For each map, the pure black is 400 and pure white is 525 (a scale I came up with before I realized that Lombardy had a 526 average science score). To start, here are the maps for Reading scores:
It is worth noting that PISA did not release the scores for three autonomous communities in Spain: Extremadura, Castile-La Mancha, and Valencia, which form a band immediately to the north of Andalusia and Murcia. I’ve made those three mostly transparent.
Finally, this pair of maps integrates the data from all three areas, with the red channel being Reading, green Mathematics, and blue Science. As above, the lighter a region, the higher it’s scores were, but in addition, its hue reflects the areas of the test where students did comparably better. For instance, many of the provinces in northern Italy have a slight bluish hue and that’s a result of having comparably good science scores and comparably poor reading scores:
Here’s the raw data for the maps above:
|Castile and Leon||507||514||516|
|Ceuta and Melilla||403||417||416|