Proportion of students at the end of lower secondary education achieving at least a minimum proficiency level in mathematics, adjusted speaks language of the test parity index (LTPIA) by country
The adjusted speaks language of the test parity index (LTPIA) is calculated by dividing the value for the indicator for students who do not speak the language of the test at home by the value for the indicator for students who speak the language of the test at home. If the resulting value exceeds 1, the ratio is...
What the numbers show
Proportion of students at the end of lower secondary education achieving at least a minimum proficiency level in mathematics, adjusted speaks language of the test parity index (LTPIA) is currently reported for 47 countries. The highest value is 1.35 LTPIA in Morocco; the lowest is 0.4013 LTPIA in Italy.
The median across all reporting countries is 0.7939 LTPIA, and the mean is 0.7762 LTPIA.
The gap between the highest and lowest reporting country is a factor of about 3.
Over the past decade 21 countries rose and 26 fell. The largest increase was in Brazil (up 55.8%), and the largest decrease in Italy (down 50.7%).
Proportion of students at the end of lower secondary education: full country ranking
| # | Country | Latest | Year | 10-year change | Trend |
|---|---|---|---|---|---|
| 1 | Morocco | 1.35 LTPIA | 2015 | down 3.8% | falling |
| 2 | Ireland | 1 LTPIA | 2018 | up 15.8% | flat |
| 3 | Indonesia | 0.9776 LTPIA | 2018 | up 30.4% | rising |
| 4 | Canada | 0.9681 LTPIA | 2018 | up 0.4% | flat |
| 5 | Spain | 0.9493 LTPIA | 2018 | down 0.5% | falling |
| 6 | Hong Kong | 0.9247 LTPIA | 2018 | up 5.7% | flat |
| 7 | Singapore | 0.9165 LTPIA | 2015 | up 1.0% | falling |
| 8 | Israel | 0.9067 LTPIA | 2018 | down 7.4% | falling |
| 9 | New Zealand | 0.8968 LTPIA | 2018 | up 10.2% | flat |
| 10 | Poland | 0.8959 LTPIA | 2018 | up 1.3% | flat |
| 11 | Australia | 0.8928 LTPIA | 2018 | down 7.9% | falling |
| 12 | Serbia | 0.8677 LTPIA | 2018 | up 12.5% | rising |
| 13 | United States | 0.8655 LTPIA | 2018 | down 1.1% | rising |
| 14 | Latvia | 0.8541 LTPIA | 2018 | down 8.7% | flat |
| 15 | Jordan | 0.8493 LTPIA | 2018 | down 5.8% | falling |
| 16 | Croatia | 0.8408 LTPIA | 2018 | up 2.2% | rising |
| 17 | Luxembourg | 0.833 LTPIA | 2018 | down 8.7% | rising |
| 18 | Portugal | 0.8206 LTPIA | 2018 | down 4.7% | rising |
| 19 | Iceland | 0.8199 LTPIA | 2018 | up 6.5% | falling |
| 20 | Norway | 0.813 LTPIA | 2018 | up 17.6% | rising |
| 21 | Tunisia | 0.8082 LTPIA | 2015 | down 35.5% | volatile |
| 22 | Colombia | 0.8056 LTPIA | 2018 | down 2.7% | rising |
| 23 | Denmark | 0.7984 LTPIA | 2018 | up 14.3% | flat |
| 24 | Finland | 0.7939 LTPIA | 2018 | down 10.2% | falling |
| 25 | Republic of Korea | 0.7925 LTPIA | 2018 | up 14.5% | rising |
| 26 | Lithuania | 0.7709 LTPIA | 2018 | down 12.6% | falling |
| 27 | France | 0.7701 LTPIA | 2018 | up 8.1% | falling |
| 28 | Belgium | 0.7647 LTPIA | 2018 | down 14.3% | falling |
| 29 | Czechia | 0.7591 LTPIA | 2018 | down 18.2% | flat |
| 30 | Brazil | 0.7571 LTPIA | 2018 | up 55.8% | falling |
| 31 | Russian Federation | 0.74 LTPIA | 2018 | down 5.2% | flat |
| 32 | Hungary | 0.74 LTPIA | 2015 | down 1.6% | rising |
| 33 | Netherlands | 0.729 LTPIA | 2018 | down 13.3% | falling |
| 34 | Sweden | 0.7097 LTPIA | 2018 | up 1.0% | flat |
| 35 | Austria | 0.6959 LTPIA | 2018 | down 5.0% | flat |
| 36 | Germany | 0.6645 LTPIA | 2018 | down 16.8% | rising |
| 37 | Slovenia | 0.6485 LTPIA | 2018 | down 18.7% | falling |
| 38 | Romania | 0.6423 LTPIA | 2018 | up 21.5% | falling |
| 39 | Uruguay | 0.6208 LTPIA | 2018 | down 3.6% | flat |
| 40 | Greece | 0.599 LTPIA | 2018 | up 1.8% | flat |
| 41 | Thailand | 0.5904 LTPIA | 2018 | down 30.7% | falling |
| 42 | Bulgaria | 0.5645 LTPIA | 2018 | up 23.4% | rising |
| 43 | Slovakia | 0.5272 LTPIA | 2018 | down 27.3% | falling |
| 44 | Iran | 0.5257 LTPIA | 2015 | up 20.7% | falling |
| 45 | Argentina | 0.5234 LTPIA | 2018 | down 14.5% | falling |
| 46 | Mexico | 0.4891 LTPIA | 2018 | up 46.4% | rising |
| 47 | Italy | 0.4013 LTPIA | 2015 | down 50.7% | flat |
About this data
The adjusted speaks language of the test parity index (LTPIA) is calculated by dividing the value for the indicator for students who do not speak the language of the test at home by the value for the indicator for students who speak the language of the test at home. If the resulting value exceeds 1, the ratio is inverted and subtracted from 2. The adjusted speaks language of the test parity index is symmetrical around 1 and lies in the range 0-2. An adjusted LTPI equal to 1 indicates parity between students who do and do not speak the language of the test at home. In general, a value less than 1 indicates disparity in favor of students who speak the language of test at home. A value greater than 1 indicates disparity in favor of students who do not speak the language of the test at home. For more information, consult the UNESCO Institute for Statistics: http://uis.unesco.org/