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Question: Thinking about your school: to what extent do you agree with the following statements? - I make friends easily at school.
Choices: "Strongly disagree" "Disagree" "Agree" "Strongly agree"
Data: % of "Agree" "Strongly agree"
Period:
Area:
10 countries/ areas
Highlight:
1 Republic of Korea76.7%
2 France76.1%
3 Italy74.7%
4 Australia73.5%
5 Sweden72.5%
6 United States69.8%
7 Canada69.4%
7 United Kingdom69.4%
9 Japan 68.0%
10 Germany65.7%

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 = -3.732178 X +9.437
Correlation coefficient (r)-0.285
Coefficient of determination (R2)0.081

GDP per capita (current US$)
No. of data10
Regression equation
Y = -91243.668166 X +115045.518
Correlation coefficient (r)-0.284
Coefficient of determination (R2)0.081

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = 16.745470 X +69.904
Correlation coefficient (r)0.312
Coefficient of determination (R2)0.097

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = -1.788454 X +2.742
Correlation coefficient (r)-0.237
Coefficient of determination (R2)0.056

Suicide - all ages (per 100,000 population)
No. of data10
Regression equation
Y = 56.650906 X -26.581
Correlation coefficient (r)0.348
Coefficient of determination (R2)0.121