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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 France19.0%
6 United States17.1%
7 Republic of Korea10.5%
8 Japan 2.9%

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 = 4.856853 X +5.830
Correlation coefficient (r)0.731
Coefficient of determination (R2)0.534

GDP per capita (current US$)
No. of data8
Regression equation
Y = 69384.242424 X +36887.596
Correlation coefficient (r)0.408
Coefficient of determination (R2)0.166

Life expectancy at birth - Both sexes (years)
No. of data8
Regression equation
Y = -8.517483 X +83.562
Correlation coefficient (r)-0.304
Coefficient of determination (R2)0.092

Fertility rate, total (births per woman)
No. of data8
Regression equation
Y = 1.706993 X +1.156
Correlation coefficient (r)0.428
Coefficient of determination (R2)0.183

Suicide - all ages (per 100,000 population)
No. of data8
Regression equation
Y = -49.792541 X +23.363
Correlation coefficient (r)-0.585
Coefficient of determination (R2)0.342