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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:
18 countries/ areas
Highlight:
1 Australia29.7%
2 New Zealand27.0%
3 Chile25.3%
4 United Kingdom24.3%
5 Portugal24.2%
6 Italy20.9%
6 United States20.9%
8 Sweden19.4%
9 France16.7%
10 Ireland15.1%
11 Israel14.7%
12 Turkiye14.3%
13 Norway13.1%
14 Hungary12.9%
15 Finland 10.6%
16 Republic of Korea10.1%
17 Lithuania8.4%
18 Japan2.7%

Note
United Kingdom: England only.

No data for 20 countries.

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

Correlations with major national performance indices
Life satisfaction (10 steps)
No. of data18
Regression equation
Y = 1.163927 X +6.431
Correlation coefficient (r)0.127
Coefficient of determination (R2)0.016

GDP per capita (current US$)
No. of data18
Regression equation
Y = 21853.104818 X +42962.712
Correlation coefficient (r)0.058
Coefficient of determination (R2)0.003

Life expectancy at birth - Both sexes (years)
No. of data18
Regression equation
Y = 3.280338 X +80.168
Correlation coefficient (r)0.073
Coefficient of determination (R2)0.005

Fertility rate, total (births per woman)
No. of data18
Regression equation
Y = 0.803865 X +1.466
Correlation coefficient (r)0.136
Coefficient of determination (R2)0.018

Suicide, age-standardized (per 100 000 population)
No. of data18
Regression equation
Y = -26.244169 X +15.058
Correlation coefficient (r)-0.387
Coefficient of determination (R2)0.150