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Re:'The Class Ceiling' Decodes the Cultures of Elite Workplaces by zepto on Tuesday February 26, 2019 @01:18PM (#19256869)
I’d be very interested to know who was studied for those results.

It’s easy to imagine that people at the highest end simply weren’t available to be selected for the study.

Re:'The Class Ceiling' Decodes the Cultures of Elite Workplaces by Pryde on Tuesday February 26, 2019 @01:33PM (#19256997)
Likely not the research referenced by the GP, but this paper: http://web.econ.ku.dk/gensowski/research/Terman/Terman.pdf finds that Conscientiousness, IQ, and Extraversion are correlated with increased income (for men at least) among the Terman survey.

If I'm summarizing correctly, the Terman survey includes a group of 856 boys and 672 girls born around 1910 and selected in 1921-1922 who were followed until 1991.

Re:'The Class Ceiling' Decodes the Cultures of Elite Workplaces by zepto on Tuesday February 26, 2019 @06:24PM (#19259378)
Looking at that study, the high end simply wasn’t included. It seemed to just cover wage earners and professional salaried workers.
Re:'The Class Ceiling' Decodes the Cultures of Elite Workplaces by AlexTWithBeard on Tuesday February 26, 2019 @01:22PM (#19256910)
I also don't have a reference right now, but I would assume they've taken a thousand of random people and ran some statistical analysis on that sample.

Chances of someone from this thousand people being among the highest end are indeed pretty small.