美國絕對分也低了,但是相對排名反而上升。
https://www.nytimes.com/2023/12/05/us/math-scores-pandemic-pisa.html
Math Scores Dropped Globally, but the U.S. Still Trails Other Countries
In a global exam for 15-year-olds, only a handful of places, including Singapore, Japan and Australia, kept math performance high through the pandemic.