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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 Canada 14.8%
2 United Kingdom14.8%
5 France11.1%
7 Germany9.8%
8 Italy9.2%
9 Japan9.1%

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 data7
Regression equation
Y = 5.420821 X +5.908
Correlation coefficient (r)0.668
Coefficient of determination (R2)0.446

GDP per capita (current US$)
No. of data7
Regression equation
Y = 369443.692775 X +4712.014
Correlation coefficient (r)0.857
Coefficient of determination (R2)0.734

Life expectancy at birth - Both sexes (years)
No. of data7
Regression equation
Y = -45.675946 X +87.204
Correlation coefficient (r)-0.778
Coefficient of determination (R2)0.605

Fertility rate, total (births per woman)
No. of data7
Regression equation
Y = 2.778107 X +1.128
Correlation coefficient (r)0.470
Coefficient of determination (R2)0.221

Suicide, age-standardized (per 100 000 population)
No. of data7
Regression equation
Y = 47.107351 X +3.592
Correlation coefficient (r)0.500
Coefficient of determination (R2)0.250