Wikipedia happily reports that North Korea has a 100% adult proficient literacy rate. Cuba has a 99.9% rate. Brazil 98%, all leaps and bounds beyond any western country. https://en.wikipedia.org/wiki/List_of_countries_by_literacy_... The US is certainly behind much of the world in education, but these metrics are really hard gauge accurately. Diving in to where these numbers come from and how they compare to the rest…
"I also see other commentors jumping to trashing schools or the education system for this. Does a flat number really point to education? What about poverty levels, general cultural attitudes towards literacy, accounting and definition of proficiency, etc."
If you only look at a specific segment of students (e.g. Socio-economically disadvantaged Hispanic 3rd graders), you can compare school districts and individual schools, without having your data polluted by different poverty levels etc.
If you look at the careads web site, you'll see they compared districts in California, and found (i) significant variation between districts, and (ii) worse-performing districts had a higher prevalance of using F&P/Calkin type reading curricula.
The folks who run that site didn't compare individual schools (so as not to over-interpret random variation). I was curious so I looked at the data for the schools in San Francisco.
For my local school (Glen Park Elementary), the % of that segment reading at grade level or above was 4%.
For Hillcrest Elementary, for the same segment of students, it was 65%.
In each case, the sample included at least 15 students.
What explains the large difference in results between schools, even after we control for poverty and home language?