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The Jordan Harbinger Show

1159: IQ Tests | Skeptical Sunday

The Jordan Harbinger Show

Jordan Harbinger

Business, Education, Science

4.8 • 12.3K Ratings

🗓️ 25 May 2025

⏱️ 57 minutes

🔗️ Recording | iTunes | RSS

🧾️ Download transcript

Summary

Do IQ tests measure your fixed intellect, or is there more to the equation? Despite their dark history, Michael Regilio bears good news on Skeptical Sunday!

Welcome to Skeptical Sunday, a special edition of The Jordan Harbinger Show where Jordan and a guest break down a topic that you may have never thought about, open things up, and debunk common misconceptions. This time around, we’re joined by skeptic, comedian, and podcaster Michael Regilio!

Jordan's must reads (including books from this episode): AcceleratEd

Full show notes and resources can be found here: jordanharbinger.com/1159

On This Week's Skeptical Sunday:

  • In 1927, the US Supreme Court supported forced sterilization of "feeble-minded" people based on IQ scores. Over 7,000 were sterilized in North Carolina alone. Nazi war criminals later cited American eugenics programs as inspiration.
  • Early IQ tests asked about Edgar Allan Poe and bowling terminology. These measured cultural knowledge, not intelligence, disadvantaging anyone without specific educational or social backgrounds. This could mean the difference between becoming an officer or cannon fodder in WWI.
  • Researcher James Robert Flynn determined that IQ scores have risen three points per decade throughout the 20th century. But contrary to claims made in the 1994 book The Bell Curve, this "Flynn effect" isn't due to evolution or genetics, but factors like better nutrition, cleaner water, smaller families, and more cognitively demanding environments.
  • ChatGPT scores 99.9th percentile verbally but fails simple logic puzzles humans solve instantly. This demonstrates how intelligence isn't a single number — it's more like a jazz ensemble where mathematical reasoning, emotional intelligence, creativity, and street smarts all play different instruments. Trying to capture that symphony with one test is like describing a rainbow using only numbers.
  • IQ tests aren't worthless — they're just misunderstood. Use them as diagnostic tools, not destiny predictors. Low pattern recognition score? Practice puzzles. Weak verbal reasoning? Read more complex texts. Identify specific cognitive areas to strengthen rather than accepting a single number as your limit. Your IQ isn't your written-in-stone fate — it's your starting coordinates on an infinitely expandable map of human potential.
  • Connect with Jordan on Twitter, Instagram, and YouTube. If you have something you'd like us to tackle here on Skeptical Sunday, drop Jordan a line at jordan@jordanharbinger.com and let him know!
  • Connect with Michael Regilio at Twitter, Instagram, and YouTube, and make sure to check out the Michael Regilio Plagues Well With Others podcast here or wherever you enjoy listening to fine podcasts!

And if you're still game to support us, please leave a review here — even one sentence helps!

This Episode Is Brought To You By Our Fine Sponsors:

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Transcript

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