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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:
2 Japan3.93
3 United Kingdom3.64
4 United States3.63
5 Germany3.51
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 data7
Regression equation
Y = -0.305376 X +7.660
Correlation coefficient (r)-0.258
Coefficient of determination (R2)0.067

GDP per capita (current US$)
No. of data7
Regression equation
Y = 3720.266646 X +37617.546
Correlation coefficient (r)0.059
Coefficient of determination (R2)0.003

Life expectancy at birth - Both sexes (years)
No. of data7
Regression equation
Y = 0.128195 X +81.062
Correlation coefficient (r)0.015
Coefficient of determination (R2)0.000

Fertility rate, total (births per woman)
No. of data7
Regression equation
Y = 0.013332 X +1.427
Correlation coefficient (r)0.015
Coefficient of determination (R2)0.000

Suicide, age-standardized (per 100 000 population)
No. of data7
Regression equation
Y = 8.978897 X -22.197
Correlation coefficient (r)0.653
Coefficient of determination (R2)0.426