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Question: How do you rate the usefulness of the following strategies for understanding and memorising the text? - After reading the text, I discuss its content with other people.
Choices: 1 "Not useful at all" - 6 "Very useful"
Data: Average score
Period:
Area:
10 countries/ areas
Highlight:
1 Republic of Korea3.95
2 Japan3.93
3 United Kingdom3.64
4 United States3.63
5 Germany3.51
5 Sweden3.51
7 Australia3.48
8 Canada3.44
9 France 3.39
10 Italy3.14

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 = -0.739461 X +9.288
Correlation coefficient (r)-0.435
Coefficient of determination (R2)0.189

GDP per capita (current US$)
No. of data10
Regression equation
Y = -10126.245860 X +85000.288
Correlation coefficient (r)-0.171
Coefficient of determination (R2)0.029

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = 0.756549 X +79.305
Correlation coefficient (r)0.080
Coefficient of determination (R2)0.006

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = -0.560599 X +3.476
Correlation coefficient (r)-0.459
Coefficient of determination (R2)0.211

Suicide, age-standardized (per 100 000 population)
No. of data10
Regression equation
Y = 14.102304 X -39.132
Correlation coefficient (r)0.746
Coefficient of determination (R2)0.557