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Question: How often do these things happen in your mathematics lessons? - Students interrupt the teacher.
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 Australia29.7%
2 United Kingdom24.3%
3 Italy20.9%
3 United States20.9%
5 Sweden19.4%
6 France16.7%
7 Republic of Korea10.1%
8 Japan 2.7%

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 = 4.902994 X +5.812
Correlation coefficient (r)0.791
Coefficient of determination (R2)0.626

GDP per capita (current US$)
No. of data8
Regression equation
Y = 92949.725298 X +32495.093
Correlation coefficient (r)0.586
Coefficient of determination (R2)0.343

Life expectancy at birth - Both sexes (years)
No. of data8
Regression equation
Y = -11.391597 X +84.098
Correlation coefficient (r)-0.436
Coefficient of determination (R2)0.190

Fertility rate, total (births per woman)
No. of data8
Regression equation
Y = 1.712324 X +1.152
Correlation coefficient (r)0.461
Coefficient of determination (R2)0.213

Suicide - all ages (per 100,000 population)
No. of data8
Regression equation
Y = -41.614930 X +21.977
Correlation coefficient (r)-0.524
Coefficient of determination (R2)0.275