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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 France36.9%
2 United States34.6%
3 Germany 33.0%
4 Italy32.4%
5 Canada30.8%
7 United Kingdom30.1%
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 data7
Regression equation
Y = 2.713967 X +5.763
Correlation coefficient (r)0.705
Coefficient of determination (R2)0.497

GDP per capita (current US$)
No. of data7
Regression equation
Y = 105051.069626 X +18963.698
Correlation coefficient (r)0.514
Coefficient of determination (R2)0.264

Life expectancy at birth - Both sexes (years)
No. of data7
Regression equation
Y = -15.582463 X +86.227
Correlation coefficient (r)-0.560
Coefficient of determination (R2)0.314

Fertility rate, total (births per woman)
No. of data7
Regression equation
Y = 1.696240 X +0.961
Correlation coefficient (r)0.606
Coefficient of determination (R2)0.367

Suicide, age-standardized (per 100 000 population)
No. of data7
Regression equation
Y = -10.395153 X +12.604
Correlation coefficient (r)-0.233
Coefficient of determination (R2)0.054