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Question: How much do you agree with the following statements? - My belief in myself gets me through hard times.
Choices: "Strongly disagree" "Disagree" "Agree" "Strongly agree"
Data: % of "Strongly agree" "Agree"
Period:
Area:
10 countries/ areas
Highlight:
2 United States75.1%
3 Italy72.0%
4 Canada70.6%
5 Germany68.3%
8 United Kingdom58.7%
9 France 58.5%
10 Japan56.3%

Source
PISA 2018 Results (Volume III) : What School Life Means for Studentsf Lives

Correlations with major national performance indices
Life satisfaction (10 steps)
No. of data7
Regression equation
Y = 1.487738 X +5.607
Correlation coefficient (r)0.389
Coefficient of determination (R2)0.151

GDP per capita (current US$)
No. of data7
Regression equation
Y = 125255.929852 X -31487.428
Correlation coefficient (r)0.617
Coefficient of determination (R2)0.381

Life expectancy at birth - Both sexes (years)
No. of data7
Regression equation
Y = -18.826099 X +93.872
Correlation coefficient (r)-0.682
Coefficient of determination (R2)0.465

Fertility rate, total (births per woman)
No. of data7
Regression equation
Y = -0.376235 X +1.721
Correlation coefficient (r)-0.135
Coefficient of determination (R2)0.018

Suicide, age-standardized (per 100 000 population)
No. of data7
Regression equation
Y = 1.991108 X +8.153
Correlation coefficient (r)0.045
Coefficient of determination (R2)0.002