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Question: How much do you agree with these statements about mathematics? - Mathematics is more difficult for me than for many of my classmates.
Choices: "Agree a lot" "Agree a little" "Disagree a little" "Disagree a lot"
Data: % of "Agree a lot"
Period:
Area:
18 countries/ areas
Highlight:
1 Portugal22.1%
2 Italy19.6%
3 Turkiye16.5%
4 Japan15.9%
4 New Zealand15.9%
6 Ireland15.8%
7 United States 15.4%
8 France15.2%
9 Norway14.6%
10 Australia13.6%
11 United Kingdom13.1%
12 Sweden12.9%
13 Israel12.1%
14 Finland11.7%
15 Hungary11.1%
16 Chile11.0%
17 Lithuania10.2%
18 Republic of Korea7.7%

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 = -3.205400 X +7.111
Correlation coefficient (r)-0.148
Coefficient of determination (R2)0.022

GDP per capita (current US$)
No. of data18
Regression equation
Y = 45154.817930 X +39657.730
Correlation coefficient (r)0.064
Coefficient of determination (R2)0.004

Life expectancy at birth - Both sexes (years)
No. of data18
Regression equation
Y = 12.961850 X +79.185
Correlation coefficient (r)0.160
Coefficient of determination (R2)0.026

Fertility rate, total (births per woman)
No. of data18
Regression equation
Y = 0.337439 X +1.551
Correlation coefficient (r)0.028
Coefficient of determination (R2)0.001

Suicide - all ages (per 100,000 population)
No. of data18
Regression equation
Y = -104.719469 X +27.811
Correlation coefficient (r)-0.550
Coefficient of determination (R2)0.303