Statizoid

Proportion of students at the end of lower secondary education achieving at least a minimum proficiency level in reading, 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...

Countries reporting
47
Highest
1.26 LTPIA
Qatar
Lowest
0.3923 LTPIA
Slovakia
Median
0.7361 LTPIA
Years covered
19
2000–2018
Data points
299

What the numbers show

Proportion of students at the end of lower secondary education achieving at least a minimum proficiency level in reading, adjusted speaks language of the test parity index (LTPIA) is currently reported for 47 countries. The highest value is 1.26 LTPIA in Qatar; the lowest is 0.3923 LTPIA in Slovakia.

The median across all reporting countries is 0.7361 LTPIA, and the mean is 0.7485 LTPIA.

The gap between the highest and lowest reporting country is a factor of about 3.

Over the past decade 19 countries rose and 28 fell. The largest increase was in Argentina (up 57.3%), and the largest decrease in Thailand (down 35.9%).

Proportion of students at the end of lower secondary education: full country ranking

#Country LatestYear 10-year changeTrend
1 Qatar 1.26 LTPIA 2018 up 12.3% rising
2 Ireland 0.948 LTPIA 2018 up 12.9% flat
3 United States 0.926 LTPIA 2018 up 2.6% rising
4 Canada 0.9202 LTPIA 2018 down 2.2% flat
5 Serbia 0.9181 LTPIA 2018 up 28.9% rising
6 Hong Kong 0.9118 LTPIA 2018 up 12.1% flat
7 Chile 0.9031 LTPIA 2018 up 52.1% rising
8 Spain 0.8991 LTPIA 2015 down 5.5% falling
9 Jordan 0.8985 LTPIA 2018 up 8.7% falling
10 Indonesia 0.8861 LTPIA 2018 down 2.7% rising
11 Israel 0.8715 LTPIA 2018 down 5.7% falling
12 Australia 0.8705 LTPIA 2018 down 7.6% falling
13 New Zealand 0.8575 LTPIA 2018 up 6.9% rising
14 Croatia 0.8511 LTPIA 2018 down 6.0% rising
15 Tunisia 0.8128 LTPIA 2015 down 28.6% falling
16 Poland 0.8095 LTPIA 2018 up 9.7% flat
17 Luxembourg 0.7975 LTPIA 2018 down 11.3% rising
18 Norway 0.7673 LTPIA 2018 up 0.5% rising
19 Portugal 0.7642 LTPIA 2018 down 9.0% rising
20 Colombia 0.7506 LTPIA 2018 down 0.6% falling
21 Italy 0.7419 LTPIA 2018 down 0.3% flat
22 Latvia 0.7387 LTPIA 2018 down 20.2% falling
23 Republic of Korea 0.7362 LTPIA 2018 down 6.1% flat
24 France 0.7361 LTPIA 2018 up 1.8% flat
25 Czechia 0.7342 LTPIA 2018 down 19.5% falling
26 Lithuania 0.7309 LTPIA 2018 down 12.0% falling
27 Hungary 0.7303 LTPIA 2018 up 50.6% rising
28 Finland 0.7298 LTPIA 2018 down 9.2% falling
29 Denmark 0.7264 LTPIA 2018 up 0.8% flat
30 Brazil 0.7215 LTPIA 2018 up 31.6% falling
31 Slovenia 0.7155 LTPIA 2018 down 8.7% falling
32 Belgium 0.708 LTPIA 2018 down 18.7% falling
33 Sweden 0.6878 LTPIA 2018 down 3.6% falling
34 Austria 0.686 LTPIA 2018 up 1.7% rising
35 Iceland 0.6858 LTPIA 2018 down 5.3% falling
36 Russian Federation 0.6781 LTPIA 2018 down 0.2% flat
37 Türkiye 0.662 LTPIA 2018 down 2.9% flat
38 Netherlands 0.6512 LTPIA 2018 down 23.7% falling
39 Germany 0.6428 LTPIA 2018 down 19.7% rising
40 Uruguay 0.6138 LTPIA 2018 down 11.2% falling
41 Argentina 0.6113 LTPIA 2018 up 57.3% falling
42 Greece 0.5867 LTPIA 2018 down 5.3% flat
43 Thailand 0.5557 LTPIA 2018 down 35.9% falling
44 Romania 0.4995 LTPIA 2018 up 2.8% falling
45 Bulgaria 0.4342 LTPIA 2018 up 7.2% rising
46 Mexico 0.4255 LTPIA 2018 up 23.1% rising
47 Slovakia 0.3923 LTPIA 2018 down 34.6% falling

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Proportion of students at the end of lower secondary education by country. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 30 August 2026, from https://reference.statizoid.com/stat/proportion-of-students-at-the-end-of-lower-secondary-education-achieving-at-least-a-20/

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About this data

Indicator
Proportion of students at the end of lower secondary education achieving at least a minimum proficiency level in reading, adjusted speaks language of the test parity index (LTPIA)
Unit
LTPIA
Source
UNESCO Institute for Statistics
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
47 places, 299 data points, 2000–2018
Last refreshed

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/