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Emil O. W. Kirkegaard blog

Read more about the article Reader survey 2022 results

Reader survey 2022 results

  • Post author:Emil O. W. Kirkegaard
  • Post published:7. November 2022
  • Post category:intelligence / IQ / cognitive ability/Psychology

So let's see those survey results from the 2022 reader survey. Some of them are funny. There were a total of 318 takers, of which 125 were complete (answered every…

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Read more about the article What’s the right dose of democracy?

What’s the right dose of democracy?

  • Post author:Emil O. W. Kirkegaard
  • Post published:4. November 2022
  • Post category:Book review/Economics/Immigration

If you haven't done so already, take the reader survey here! In medicine, there's the occasional discussion of the dose response function of some drug. People wisely assume that it…

Continue ReadingWhat’s the right dose of democracy?
Read more about the article Does vaping shrink your balls?

Does vaping shrink your balls?

  • Post author:Emil O. W. Kirkegaard
  • Post published:3. November 2022
  • Post category:Medicine

Some time ago, someone sent me this: https://twitter.com/AlpacaAurelius/status/1583506701726064651 I know, generic ancient Rome/Greek right-wing back-to-nature type stuff, even hates on deodorants: https://twitter.com/AlpacaAurelius/status/1587965330856493056 "Alright Emil, but these are cheap shots. What…

Continue ReadingDoes vaping shrink your balls?
Read more about the article African IQs and mental retardation

African IQs and mental retardation

  • Post author:Emil O. W. Kirkegaard
  • Post published:27. October 2022
  • Post category:intelligence / IQ / cognitive ability/Psychiatry

This one comes up a lot when we discuss the dire realities of the average intelligence levels seen in Sub-Saharan African countries: If the mean IQs are 70, wouldn't that…

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Read more about the article Secular changes in race differences in height: a mystery

Secular changes in race differences in height: a mystery

  • Post author:Emil O. W. Kirkegaard
  • Post published:24. October 2022
  • Post category:Genetics / behavioral genetics/intelligence / IQ / cognitive ability

Be sure to participate in the 2022 reader survey if you didn't already! Some days ago I came across this study: Rashad, I. (2008). Height, health, and income in the…

Continue ReadingSecular changes in race differences in height: a mystery

Substack 1st anniversary, statistics, reader survey, and a new video

  • Post author:Emil O. W. Kirkegaard
  • Post published:23. October 2022
  • Post category:Economics/Meta/Personal

My Substack is growing a lot faster than I anticipated, and we've hit 2000 2100. It took about one year, as my first post was 11th October 2021: Paid subscribers…

Continue ReadingSubstack 1st anniversary, statistics, reader survey, and a new video
Read more about the article Variance explained is mostly bad

Variance explained is mostly bad

  • Post author:Emil O. W. Kirkegaard
  • Post published:21. October 2022
  • Post category:Genetics / behavioral genetics/Math/Statistics

Reporting the proportion of variance explained by some statistical model is ubiquitous. However, just like p-values, it is a misleading metric. I'll try explain why it is used, and why…

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Read more about the article National intelli… basic skills!

National intelli… basic skills!

  • Post author:Emil O. W. Kirkegaard
  • Post published:20. October 2022
  • Post category:intelligence / IQ / cognitive ability

Ludger Woessmann tells us about some dire facts: https://twitter.com/Woessmann/status/1581884461007785986 It's about their new 75 page working paper which they summarize thus: How far is the world away from ensuring that…

Continue ReadingNational intelli… basic skills!
Read more about the article What has feminism done for women? Review of Louise Perry’s The Case Against the Sexual Revolution

What has feminism done for women? Review of Louise Perry’s The Case Against the Sexual Revolution

  • Post author:Emil O. W. Kirkegaard
  • Post published:19. October 2022
  • Post category:Book review/Psychology

Self-proclaimed feminists like to describe their movement as being very diverse. This is not generally true, most of them hold more or less the same views. There are a few…

Continue ReadingWhat has feminism done for women? Review of Louise Perry’s The Case Against the Sexual Revolution
Read more about the article Research credibility and group differences

Research credibility and group differences

  • Post author:Emil O. W. Kirkegaard
  • Post published:16. October 2022
  • Post category:intelligence / IQ / cognitive ability/Psychology/Stereotypes

Suppose you did some research that you want to publish. Say you investigated the difference between men on women on some number of traits that are relevant to your current…

Continue ReadingResearch credibility and group differences
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