TIMSS 2023 — Proficiency Distributions

Compare score distributions and international benchmarks across countries, for Mathematics and Science at grades 4 and 8

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Proficiency Distributions

Students by TIMSS International Benchmark

Source: IEA TIMSS 2023 International Results — Exhibits 1.1.1 / 1.2.1 / 2.1.1 / 2.2.1 (means, standard deviations), 1.1.4 / 1.2.4 / 2.1.4 / 2.2.4 (benchmark percentages) and Appendix D (percentiles). Normal distribution curves simulated from reported mean and standard deviation. Benchmark proportions from observed data (cumulative thresholds: Low 400, Intermediate 475, High 550, Advanced 625).