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Question: How do you rate the usefulness of the following strategies for understanding and memorising the text? - I summarise the text in my own words.
Choices: 1 "Not useful at all" - 6 "Very useful"
Data: Average score
Period:
Area:
38 countries/ areas
Highlight:
1 Spain4.52
2 Republic of Korea4.49
3 Italy4.37
4 Japan 4.29
5 Hungary4.23
5 Slovenia4.23
7 Turkiye4.22
8 France4.21
9 Chile4.19
10 Costa Rica4.16
10 Estonia4.16
10 Greece4.16
10 Poland4.16
14 Ireland4.13
15 Mexico4.10
16 Switzerland4.02
17 Portugal4.01
18 Latvia3.97
19 Lithuania3.96
20 United Kingdom3.93
21 Denmark3.90
22 United States3.89
23 Germany3.88
24 Colombia3.87
24 Slovakia3.87
26 New Zealand3.85
27 Australia3.84
28 Sweden3.83
29 Czech Republic3.82
30 Austria3.81
30 Belgium3.81
32 Canada3.78
33 Luxembourg3.76
34 Norway3.69
35 Finland3.68
36 Netherlands3.58
37 Iceland3.56
38 Israel3.55

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 data38
Regression equation
Y = -1.770085 X +13.764
Correlation coefficient (r)-0.664
Coefficient of determination (R2)0.441

GDP per capita (current US$)
No. of data38
Regression equation
Y = -51272.822477 X +248695.425
Correlation coefficient (r)-0.444
Coefficient of determination (R2)0.197

Life expectancy at birth - Both sexes (years)
No. of data38
Regression equation
Y = -0.957945 X +84.245
Correlation coefficient (r)-0.089
Coefficient of determination (R2)0.008

Fertility rate, total (births per woman)
No. of data38
Regression equation
Y = -0.479883 X +3.492
Correlation coefficient (r)-0.381
Coefficient of determination (R2)0.145

Suicide - all ages (per 100,000 population)
No. of data38
Regression equation
Y = 1.687539 X +5.691
Correlation coefficient (r)0.075
Coefficient of determination (R2)0.006