It would be interesting to see some sample tests. From the data section: The measure of IQ used in the analysis was obtained from tests of cognitive ability adm

It would be interesting to see some sample tests. From the data section: The measure of IQ used in the analysis was obtained from tests of cognitive ability administered by the Norwegian military to all draft-eligible men at approximately the age of 19 y as part of the universal military draft in Norway. The data from these tests have been widely used and interpreted as IQ scores for research purposes. Also interesting, the historical summary of the "distributed" nature of the Norway educational system: The reform [...] required that all municipalities provide their youths with an additional 2 y of standardized education in the eighth and ninth grades. [...] The reform was introduced at the municipality level, the lowest of three administrative levels in Norway, with the other two levels being the national level, which has responsibility for higher (tertiary) education, and the county level, which has responsibility for secondary education. [...] Following the reform, the new type of middle school was administered by the municipalities. Each separate municipality was able to introduce the full compulsory schooling reform after local officials submitted a reform plan to a national committee, provided national funds [...] It sounds like they used a bottom-up approach rather than a plan forced from on top, which seems like a good thing. This makes me want to learn more about how school systems / school boards work. It seems to be a city-level organizational structure, but there are provincial/state, and federal rules too. This is a lot of APIs: you pay federal, provincial, municipal, and school taxes, and then some portion of your taxes comes to the schools. Surely there's room for simplification...