Tweet
Question: You have received a message in your inbox from a wellknown mobile phone operator telling you that you are one of the winners of a smartphone. The sender asks you to click on the link to fill out a form with your data so they can send you the smartphone. In your opinion, how appropriate are the following strategies in reaction to this email? - Check the website of the mobile phone operator to see whether the smartphone offer is mentioned
Choices: 1 "Not useful at all" - 6 "Very useful"
Data: Average score
Period:
Area:
10 countries/ areas
Highlight:
1 Republic of Korea4.28
2 Japan4.26
3 Germany3.79
3 United Kingdom3.79
5 Italy3.70
6 France 3.62
7 Canada3.56
8 United States3.55
9 Sweden3.53
10 Australia3.49

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 = -1.201818 X +11.170
Correlation coefficient (r)-0.843
Coefficient of determination (R2)0.711

GDP per capita (current US$)
No. of data10
Regression equation
Y = -36225.370427 X +185029.317
Correlation coefficient (r)-0.728
Coefficient of determination (R2)0.530

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = 3.003138 X +70.717
Correlation coefficient (r)0.378
Coefficient of determination (R2)0.143

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = -0.793329 X +4.460
Correlation coefficient (r)-0.774
Coefficient of determination (R2)0.599

Suicide, age-standardized (per 100 000 population)
No. of data10
Regression equation
Y = 7.020829 X -15.277
Correlation coefficient (r)0.443
Coefficient of determination (R2)0.196