The data includes third- through eighth-grade test scores for districts in 40 states and the District of Columbia, as of the end of last school year. It accounts for about 68 percent of U.S. school districts nationwide. (Ten states were excluded, among them New York and Illinois, because of high opt-out rates or noncomparable data.)
Oddly, only 38 states + DC in the graphic shared here
Some states are missing?
If they could read, they’d probably be really mad about that.
Per the article:
Oddly, only 38 states + DC in the graphic shared here
Yeah, there are 39 entries here by my count, for 50 States + DC. 12 states are missing.
Perhaps they didn’t have access to data for these states? Perhaps the graph would be a bit different with them included? I do not know.