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Question: How often do these things happen in your mathematics lessons? - My teacher has to wait a long time for students to quiet down.
Choices: "Every or almost every lesson" "About half the lessons" "Some lessons" "Never"
Data: % of "Every or almost every lesson"
Period:
Area:
8 countries/ areas
Highlight:
1 Australia27.1%
2 Italy24.0%
3 United Kingdom22.4%
4 Sweden20.2%
5 France 19.0%
6 United States17.1%
7 Republic of Korea10.5%
8 Japan2.9%

Note
United Kingdom: England only.

No data for 2 countries.

Source
TIMSS 2019 > International Database > TIMSS 2019 Data Almanacs - Grade 8

Correlations with major national performance indices
Life satisfaction (10 steps)
No. of data8
Regression equation
Y = 3.944802 X +5.910
Correlation coefficient (r)0.676
Coefficient of determination (R2)0.457

GDP per capita (current US$)
No. of data8
Regression equation
Y = 87604.102564 X +32507.991
Correlation coefficient (r)0.424
Coefficient of determination (R2)0.180

Life expectancy at birth - Both sexes (years)
No. of data8
Regression equation
Y = -6.634033 X +83.250
Correlation coefficient (r)-0.203
Coefficient of determination (R2)0.041

Fertility rate, total (births per woman)
No. of data8
Regression equation
Y = 2.171795 X +1.084
Correlation coefficient (r)0.509
Coefficient of determination (R2)0.259

Suicide, age-standardized (per 100 000 population)
No. of data8
Regression equation
Y = -35.396970 X +17.885
Correlation coefficient (r)-0.547
Coefficient of determination (R2)0.299