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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 = 2.302122 X +5.186
Correlation coefficient (r)0.815
Coefficient of determination (R2)0.664

GDP per capita (current US$)
No. of data10
Regression equation
Y = 66485.118070 X +6526.392
Correlation coefficient (r)0.675
Coefficient of determination (R2)0.456

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = -7.230533 X +86.612
Correlation coefficient (r)-0.460
Coefficient of determination (R2)0.212

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = 0.938255 X +0.881
Correlation coefficient (r)0.462
Coefficient of determination (R2)0.213

Suicide, age-standardized (per 100 000 population)
No. of data10
Regression equation
Y = -5.921597 X +14.877
Correlation coefficient (r)-0.188
Coefficient of determination (R2)0.035