The pros and cons of standardized testing

https://ed.ted.com/lessons/should-we-get-rid-of-standardized-testing-arlo-kempf

Companion Volume with new descriptors

https://rm.coe.int/cefr-companion-volume-with-new-descriptors-2018/1680787989

Bank of supplementary descriptors

http://www.coe.int/en/web/common-european-framework-reference-languages/bank-of-supplementary-descriptors