Adjusted language test parity index for achieving a minimum proficiency level in reading and mathematics (ratio) by country
Countries reporting
57
Highest
1.24 ratio
Qatar
Lowest
0.3072 ratio
Mexico
Median
0.7173 ratio
Years covered
24
2000–2023
Data points
406
What the numbers show
Adjusted language test parity index for achieving a minimum proficiency level in reading and mathematics (ratio) is currently reported for 57 countries. The highest value is 1.24 ratio in Qatar; the lowest is 0.3072 ratio in Mexico.
The median across all reporting countries is 0.7173 ratio, and the mean is 0.702 ratio.
The gap between the highest and lowest reporting country is a factor of about 4.
Over the past decade 7 countries rose and 50 fell. The largest increase was in Chile (up 274.3%), and the largest decrease in Brazil (down 62.4%).
Adjusted language test parity index for achieving a minimum … ratio: full country ranking
| # | Country | Latest | Year | 10-year change | Trend |
|---|---|---|---|---|---|
| 1 | Qatar | 1.24 ratio | 2023 | down 26.0% | rising |
| 2 | Bahrain | 1.15 ratio | 2023 | down 32.1% | flat |
| 3 | Canada | 0.9935 ratio | 2022 | down 0.5% | flat |
| 4 | Hungary | 0.9883 ratio | 2023 | up 33.6% | rising |
| 5 | Australia | 0.9547 ratio | 2022 | down 3.1% | flat |
| 6 | Singapore | 0.9534 ratio | 2023 | up 4.7% | rising |
| 7 | Ireland | 0.9431 ratio | 2022 | down 1.7% | flat |
| 8 | Spain | 0.9 ratio | 2022 | down 2.6% | falling |
| 9 | Israel | 0.8561 ratio | 2022 | down 17.1% | falling |
| 10 | Albania | 0.8551 ratio | 2022 | down 11.5% | rising |
| 11 | Latvia | 0.8513 ratio | 2022 | down 9.1% | flat |
| 12 | Indonesia | 0.8498 ratio | 2022 | down 10.4% | rising |
| 13 | New Zealand | 0.8461 ratio | 2022 | up 7.2% | falling |
| 14 | Luxembourg | 0.833 ratio | 2018 | down 8.7% | rising |
| 15 | Tunisia | 0.8082 ratio | 2015 | down 35.5% | volatile |
| 16 | Norway | 0.7882 ratio | 2022 | up 2.4% | rising |
| 17 | Poland | 0.7754 ratio | 2022 | down 16.3% | flat |
| 18 | Italy | 0.7705 ratio | 2023 | down 9.7% | falling |
| 19 | United States | 0.7618 ratio | 2022 | down 7.7% | rising |
| 20 | Costa Rica | 0.7558 ratio | 2022 | down 40.9% | falling |
| 21 | Belgium | 0.7433 ratio | 2022 | down 13.0% | falling |
| 22 | Oman | 0.7427 ratio | 2023 | down 57.0% | falling |
| 23 | Portugal | 0.7409 ratio | 2022 | down 19.2% | rising |
| 24 | Russian Federation | 0.74 ratio | 2018 | down 5.2% | flat |
| 24 | Russia | 0.74 ratio | 2018 | down 5.2% | flat |
| 26 | Lithuania | 0.7329 ratio | 2022 | down 6.8% | falling |
| 27 | Czechia | 0.7326 ratio | 2022 | down 16.3% | falling |
| 28 | Denmark | 0.7252 ratio | 2022 | down 3.7% | flat |
| 29 | Iceland | 0.7173 ratio | 2022 | down 4.5% | falling |
| 30 | Romania | 0.7089 ratio | 2022 | down 5.7% | falling |
| 31 | Sweden | 0.7075 ratio | 2022 | up 0.3% | flat |
| 32 | Finland | 0.6991 ratio | 2022 | down 4.0% | falling |
| 33 | Austria | 0.6885 ratio | 2022 | down 9.5% | flat |
| 34 | Croatia | 0.6787 ratio | 2022 | down 26.5% | flat |
| 35 | Slovenia | 0.6671 ratio | 2022 | down 9.0% | falling |
| 36 | Republic of Korea | 0.6633 ratio | 2022 | down 8.3% | flat |
| 36 | South Korea | 0.6633 ratio | 2022 | down 8.3% | flat |
| 38 | France | 0.6584 ratio | 2022 | down 8.3% | falling |
| 39 | Netherlands (Kingdom of the) | 0.6581 ratio | 2022 | down 19.0% | falling |
| 40 | Japan | 0.6115 ratio | 2023 | down 37.1% | falling |
| 41 | Jordan | 0.6076 ratio | 2022 | down 35.9% | falling |
| 42 | Lebanon | 0.6008 ratio | 2019 | down 29.7% | falling |
| 43 | Germany | 0.5971 ratio | 2022 | down 26.7% | rising |
| 44 | Uruguay | 0.5616 ratio | 2022 | down 34.3% | falling |
| 45 | Serbia | 0.5491 ratio | 2022 | down 46.5% | falling |
| 46 | Iran (Islamic Republic of) | 0.5192 ratio | 2023 | up 28.3% | rising |
| 47 | Thailand | 0.518 ratio | 2022 | down 45.1% | falling |
| 48 | Turkey | 0.4928 ratio | 2023 | down 11.8% | rising |
| 48 | Türkiye | 0.4928 ratio | 2023 | down 11.8% | rising |
| 50 | Greece | 0.4886 ratio | 2022 | down 20.8% | falling |
| 51 | Slovakia | 0.4599 ratio | 2022 | down 7.7% | falling |
| 52 | Chile | 0.4529 ratio | 2023 | up 274.3% | rising |
| 53 | Bulgaria | 0.4122 ratio | 2022 | down 5.7% | flat |
| 54 | Brazil | 0.4047 ratio | 2022 | down 62.4% | falling |
| 55 | Colombia | 0.3489 ratio | 2022 | down 34.3% | flat |
| 56 | Argentina | 0.312 ratio | 2022 | down 28.2% | falling |
| 57 | Mexico | 0.3072 ratio | 2022 | down 30.8% | rising |
Regions and income groups
Aggregates are excluded from the country ranking above so that a region can never outrank a country.
- China, Hong Kong Special Administrative Region 0.9021 ratio
- United States of America 0.7618 ratio