Is self-censorship rising in the US?

The most popular articles being shared in our network this week.

Links between Ethnicity, Socioeconomic Status, and Measured Cognition in Diverse Samples of UK Adults. Bryan Pesta and colleagues examine the relationship between average IQ and average SES across ethnic groups in the UK. They find a strong positive association. They also find that average IQs can be predicted almost perfectly from weighted averages of international test scores from the countries of origin.

Ethnic groups with higher average IQ score higher on a general socioeconomic factor.

IQ in Japan and the United States shows a growing disparity. In a classic article from 1982, Richard Lynn compares average IQ in Japan and the US. He finds that it is one third to two thirds of a standard deviation higher in Japan. Analysing data on Japanese birth cohorts from 1940 to 1970, he also finds that the average IQ in Japan rose by 7 points – which he attributes to environmental improvements.

Twitter thread by Disclose.tv. According to a recent survey by the Allensbach Institute for Public Opinion, only 40% of Germans say they can express their political opinions freely – down from 78% in 1990. Young people, those with less education and those who support the AfD or FDP parties were the most likely to say they cannot express their political opinions freely.