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Question: How much do you agree with the following statements? - I am able to understand difficult texts.
Choices: "Strongly disagree" "Disagree" "Agree" "Strongly agree"
Data: % of "Agree" "Strongly agree"
Period:
Area:
10 countries/ areas
Highlight:
1 Sweden76.1%
2 Canada73.4%
3 United Kingdom73.3%
4 Australia73.0%
5 United States72.9%
6 Germany67.0%
7 Italy60.9%
8 France58.7%
9 Republic of Korea54.7%
10 Japan 27.8%

Note
The data of Azerbaijan are collected only in Baku. The data of China are collected only in Beijing, Shanghai, Jiangsu, and Zhejiang.

Source
OECD PISA 2018 Compendia

Correlations with major national performance indices
Life satisfaction (10 steps)
No. of data10
Regression equation
Y = 2.763884 X +5.002
Correlation coefficient (r)0.843
Coefficient of determination (R2)0.711

GDP per capita (current US$)
No. of data10
Regression equation
Y = 52433.943187 X +16290.931
Correlation coefficient (r)0.651
Coefficient of determination (R2)0.424

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = -7.893107 X +86.924
Correlation coefficient (r)-0.586
Coefficient of determination (R2)0.343

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = 0.754093 X +0.981
Correlation coefficient (r)0.398
Coefficient of determination (R2)0.158

Suicide - all ages (per 100,000 population)
No. of data10
Regression equation
Y = -11.849948 X +21.528
Correlation coefficient (r)-0.290
Coefficient of determination (R2)0.084