PISA 2022 — Proficiency Distributions

Compare score distributions and proficiency levels across countries (inspired by Lant Pritchett)

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Proficiency Distributions

Students by Proficiency Level

Source: OECD PISA 2022 — Volume I, Tables I.B1.2.1–3 and I.B1.3.1–3. Normal distribution curves simulated from reported mean and standard deviation. Proficiency level proportions from observed data.