Sweden and South Korea: 93% and 84% online in 2012, maths at age 15 by 2018 +24 and −28 points
Of 17 countries where 80% or more were online in 2012, maths rose significantly by 2018 in 3, fell in 4 and held in the rest.
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If scores fell because teenagers moved online, the most connected countries of 2012–2018 should have fallen more often. They did not: countries alike in internet use went opposite ways.
Each bar: the change in the maths mean at age 15 from 2012 to 2018; beside the name, the share of internet users in 2012. The largest significant rises and falls.
- Sweden: maths 2012→2018; internet 2012 points; %
+24.1; 93.2%
OECD: PISA 2003–2022; ITU via the World Bank (internet users)
- Norway: maths 2012→2018; internet 2012 points; %
+11.6; 94.7%
OECD: PISA 2003–2022; ITU via the World Bank (internet users)
- Denmark: maths 2012→2018; internet 2012 points; %
+9.4; 92.3%
OECD: PISA 2003–2022; ITU via the World Bank (internet users)
- Finland: maths 2012→2018; internet 2012 points; %
−11.4; 89.9%
OECD: PISA 2003–2022; ITU via the World Bank (internet users)
- Germany: maths 2012→2018; internet 2012 points; %
−13.5; 82.4%
OECD: PISA 2003–2022; ITU via the World Bank (internet users)
- Switzerland: maths 2012→2018; internet 2012 points; %
−15.6; 85.2%
OECD: PISA 2003–2022; ITU via the World Bank (internet users)
- South Korea: maths 2012→2018; internet 2012 points; %
−27.8; 84.1%
OECD: PISA 2003–2022; ITU via the World Bank (internet users)
OECD PISA 2018, maths trend table (2012→2018, significance with the linking error). Internet: ITU via the World Bank, share of people online in the last three months.
The card does not say the internet is harmless: in six years a country changes its schools, its pupils and the test itself (computer-based from 2015). It shows only that high internet use alone did not predict the direction.
A question for this picture
And after 2018, mixed as well?