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Question: How often do these things happen in your mathematics lessons? - There is disruptive noise.
Choices: "Every or almost every lesson" "About half the lessons" "Some lessons" "Never"
Data: % of "Every or almost every lesson"
Period:
Area:
10 countries/ areas
Highlight:
1 France 36.9%
2 United States34.6%
3 Germany33.0%
4 Italy32.4%
5 Canada30.8%
6 Australia30.4%
7 United Kingdom30.1%
8 Sweden26.4%
9 Republic of Korea17.5%
10 Japan13.9%

Note
Belgium: The Flemish Community only. United Kingdom: England only.

Source
TIMSS 2019 > International Database > TIMSS 2019 Data Almanacs - Grade 4

Correlations with major national performance indices
Life satisfaction (10 steps)
No. of data10
Regression equation
Y = 2.904331 X +5.824
Correlation coefficient (r)0.520
Coefficient of determination (R2)0.270

GDP per capita (current US$)
No. of data10
Regression equation
Y = 97015.836645 X +21184.071
Correlation coefficient (r)0.498
Coefficient of determination (R2)0.248

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = -17.513586 X +87.009
Correlation coefficient (r)-0.564
Coefficient of determination (R2)0.318

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = 2.762187 X +0.689
Correlation coefficient (r)0.689
Coefficient of determination (R2)0.475

Suicide, age-standardized (per 100 000 population)
No. of data10
Regression equation
Y = -34.208573 X +20.884
Correlation coefficient (r)-0.551
Coefficient of determination (R2)0.304