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> PISA is an international assessment that measures 15-year-old students' reading, mathematics, and science literacy. So when they compare results from differe
by francisofascii 3y ago
> PISA is an international assessment that measures 15-year-old students' reading, mathematics, and science literacy.
So when they compare results from different years they are not really comparing the "same" 15-year-olds. To me, that is less meaningful than when they track the learning progression of the same group of students over a time period.