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Question: How do you rate the usefulness of the following strategies for understanding and memorising the text? - I concentrate on the parts of the text that are easy to understand.
Choices: 1 "Not useful at all" - 6 "Very useful"
Data: Average score
Period:
Area:
38 countries/ areas
Highlight:
1 Mexico3.80
2 Republic of Korea3.67
3 Japan 3.57
4 Lithuania3.55
5 Chile3.54
6 Colombia3.43
7 Turkiye3.42
7 United States3.42
9 Portugal3.40
10 Ireland3.38
11 Costa Rica3.34
12 Poland3.33
13 Australia3.32
13 Czech Republic3.32
13 Finland3.32
13 New Zealand3.32
13 Slovenia3.32
18 Greece3.29
19 Canada3.24
19 Iceland3.24
21 Hungary3.21
21 Switzerland3.21
23 Denmark3.18
23 Estonia3.18
23 Latvia3.18
26 Spain3.16
27 United Kingdom3.13
28 Norway3.09
29 Luxembourg3.05
30 France3.04
31 Israel3.03
32 Sweden3.02
33 Austria3.01
34 Slovakia3.00
35 Germany2.97
36 Belgium2.92
37 Italy2.87
38 Netherlands2.38

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 = -1.173762 X +10.503
Correlation coefficient (r)-0.455
Coefficient of determination (R2)0.207

GDP per capita (current US$)
No. of data38
Regression equation
Y = -37403.403637 X +165227.030
Correlation coefficient (r)-0.334
Coefficient of determination (R2)0.112

Life expectancy at birth - Both sexes (years)
No. of data38
Regression equation
Y = -2.572824 X +88.744
Correlation coefficient (r)-0.246
Coefficient of determination (R2)0.061

Fertility rate, total (births per woman)
No. of data38
Regression equation
Y = -0.042132 X +1.715
Correlation coefficient (r)-0.035
Coefficient of determination (R2)0.001

Suicide - all ages (per 100,000 population)
No. of data38
Regression equation
Y = 2.193875 X +5.326
Correlation coefficient (r)0.101
Coefficient of determination (R2)0.010