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Question: During the time when your school building was closed because of COVID-19, how often did you have the following problems when completing your school work? - Not being able to understand my school assignments
Choices: "Never" "A few times" "About once or twice a week" "Every day or almost every day"
Data: % of "About once or twice a week" "Every day or almost every day"
Period:
Area:
10 countries/ areas
Highlight:
1 United States18.4%
2 Canada14.8%
2 United Kingdom14.8%
4 Australia13.5%
5 France11.1%
6 Sweden10.0%
7 Germany9.8%
8 Italy 9.2%
9 Japan9.1%
10 Republic of Korea6.4%

Note
The data of Azerbaijan are collected only in Baku. The data of Ukraine are collected from 18 out of 27 regions.

Source
OECD PISA 2022

Correlations with major national performance indices
Life satisfaction (10 steps)
No. of data10
Regression equation
Y = 5.651640 X +5.993
Correlation coefficient (r)0.490
Coefficient of determination (R2)0.240

GDP per capita (current US$)
No. of data10
Regression equation
Y = 326253.579512 X +10726.306
Correlation coefficient (r)0.810
Coefficient of determination (R2)0.656

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = -47.125550 X +87.518
Correlation coefficient (r)-0.733
Coefficient of determination (R2)0.537

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = 4.827117 X +0.914
Correlation coefficient (r)0.582
Coefficient of determination (R2)0.339

Suicide, age-standardized (per 100 000 population)
No. of data10
Regression equation
Y = -23.927014 X +13.902
Correlation coefficient (r)-0.186
Coefficient of determination (R2)0.035