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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:
18 countries/ areas
Highlight:
1 Australia39.2%
2 New Zealand36.7%
3 Portugal35.6%
4 United Kingdom31.8%
5 Sweden28.9%
6 Chile28.6%
7 United States26.1%
8 Ireland23.0%
9 Italy22.7%
10 Turkiye20.4%
11 Israel19.6%
12 Hungary19.2%
13 Norway18.5%
14 Finland18.3%
15 France17.4%
16 Lithuania16.5%
17 Republic of Korea13.7%
18 Japan 9.2%

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 = 1.438640 X +6.292
Correlation coefficient (r)0.181
Coefficient of determination (R2)0.033

GDP per capita (current US$)
No. of data18
Regression equation
Y = 39604.922272 X +38207.148
Correlation coefficient (r)0.133
Coefficient of determination (R2)0.018

Life expectancy at birth - Both sexes (years)
No. of data18
Regression equation
Y = 4.158549 X +80.206
Correlation coefficient (r)0.134
Coefficient of determination (R2)0.018

Fertility rate, total (births per woman)
No. of data18
Regression equation
Y = 0.816097 X +1.367
Correlation coefficient (r)0.163
Coefficient of determination (R2)0.027

Suicide, age-standardized (per 100 000 population)
No. of data18
Regression equation
Y = -17.809795 X +14.742
Correlation coefficient (r)-0.303
Coefficient of determination (R2)0.092