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Question: How do you rate the usefulness of the following strategies for understanding and memorising the text? - I quickly read through the text twice.
Choices: 1 "Not useful at all" - 6 "Very useful"
Data: Average score
Period:
Area:
10 countries/ areas
Highlight:
1 Republic of Korea3.43
2 Australia3.12
3 United Kingdom3.09
4 Canada3.04
4 United States3.04
6 Germany2.66
7 Sweden2.64
8 Japan2.54
9 France 2.50
10 Italy2.35

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 = 0.049531 X +6.514
Correlation coefficient (r)0.042
Coefficient of determination (R2)0.002

GDP per capita (current US$)
No. of data10
Regression equation
Y = 12101.991555 X +14548.842
Correlation coefficient (r)0.292
Coefficient of determination (R2)0.085

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = -1.243687 X +85.533
Correlation coefficient (r)-0.188
Coefficient of determination (R2)0.035

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = -0.272277 X +2.253
Correlation coefficient (r)-0.319
Coefficient of determination (R2)0.102

Suicide, age-standardized (per 100 000 population)
No. of data10
Regression equation
Y = 8.440975 X -12.881
Correlation coefficient (r)0.638
Coefficient of determination (R2)0.407