International Comparisons: Reading, Mathematics, and ...

In 2018, PISA was administered in 79. 1 countries and education systems,2 including all 37 member countries of the OECD. PISA 2018 results are reported by average scale score (from 0 to 1,000) as well as by the percentage of students reaching particular proficiency levels. Proficiency results are presented in terms of the percentages of students

  Proficiency, Ipsas, Results, Proficiency results