K-12 Educational Efficiency

Today my colleague Ulrich Boser is releasing the results from a very important study of “productivity” in America’s school districts. The project is complicated, so I encourage people interested in the subject to take a look at the report and the accompanying interactive tools. For illustrative purposes, here’s a graph of California:

“Adjusted” per pupil spending means it’s been “adjusted for differences in cost of living and student needs.” The point here is just a pretty basic one, namely that there are enormous differences in outcomes that aren’t attributable to spending in any clear or obvious ways.