What are the key takeaways from this Everything Everywhere Daily episode?

Key insights include: **Labeling Effects on Speech:** Six fluent children told they were developing stutters showed measurable behavioral changes within two sessions — refusing to speak in class, self-correcting constantly, and declining academically. This demonstrates how authoritative negative labeling alone can alter a child's communication behavior and self-perception.; **Ethical Research Boundaries:** The American Speech-Language Hearing Association now prohibits child experimentation carrying risk of lasting harm, requiring strong prior justification for any research exposing minors to risk. The Monster Study directly shaped these modern informed consent standards that govern speech pathology research today.; **Suppression of Inconvenient Data:** Tudor's 1939 master's thesis was never formally published, remaining hidden for 62 years until a journalist located it in 2001. A 1988 journal article suggests the findings were buried because the conclusions embarrassed Johnson, illustrating how institutional reputation can suppress scientific accountability.

How long is this episode of Everything Everywhere Daily?

This episode is 13 minutes long. SignalCast provides an AI-generated summary so you can get the key insights in about 3 minutes.

Everything Everywhere Daily

The Monster Study

October 3, 2026

13 min episode · 2 min read

Episode

13 min

Read time

2 min

Topics

Psychology & Behavior, Science & Discovery, Books & Authors

AI-Generated Summary

Published Oct 3, 2026

Key Takeaways

✓Labeling Effects on Speech: Six fluent children told they were developing stutters showed measurable behavioral changes within two sessions — refusing to speak in class, self-correcting constantly, and declining academically. This demonstrates how authoritative negative labeling alone can alter a child's communication behavior and self-perception.
✓Ethical Research Boundaries: The American Speech-Language Hearing Association now prohibits child experimentation carrying risk of lasting harm, requiring strong prior justification for any research exposing minors to risk. The Monster Study directly shaped these modern informed consent standards that govern speech pathology research today.
✓Suppression of Inconvenient Data: Tudor's 1939 master's thesis was never formally published, remaining hidden for 62 years until a journalist located it in 2001. A 1988 journal article suggests the findings were buried because the conclusions embarrassed Johnson, illustrating how institutional reputation can suppress scientific accountability.
✓Limits of Environmental Theories: Johnson's hypothesis that stuttering originates in parental perception rather than biology was influential for decades but is now rejected. Modern neurodevelopmental research identifies stuttering as a complex condition involving genetic, neurological, and multiple interacting factors — not social labeling alone.

What It Covers

The 1939 "Monster Study" at the University of Iowa, led by Wendell Johnson, deliberately induced speech anxiety in 22 orphaned children aged 5–16 to test whether stuttering was learned behavior rather than biological.

Key Questions Answered

•Labeling Effects on Speech: Six fluent children told they were developing stutters showed measurable behavioral changes within two sessions — refusing to speak in class, self-correcting constantly, and declining academically. This demonstrates how authoritative negative labeling alone can alter a child's communication behavior and self-perception.
•Ethical Research Boundaries: The American Speech-Language Hearing Association now prohibits child experimentation carrying risk of lasting harm, requiring strong prior justification for any research exposing minors to risk. The Monster Study directly shaped these modern informed consent standards that govern speech pathology research today.
•Suppression of Inconvenient Data: Tudor's 1939 master's thesis was never formally published, remaining hidden for 62 years until a journalist located it in 2001. A 1988 journal article suggests the findings were buried because the conclusions embarrassed Johnson, illustrating how institutional reputation can suppress scientific accountability.
•Limits of Environmental Theories: Johnson's hypothesis that stuttering originates in parental perception rather than biology was influential for decades but is now rejected. Modern neurodevelopmental research identifies stuttering as a complex condition involving genetic, neurological, and multiple interacting factors — not social labeling alone.

Notable Moment

Six surviving participants and families of deceased subjects sued Iowa, with the state initially attempting dismissal before the Iowa Supreme Court intervened. Iowa ultimately paid $925,000 in 2007 to settle claims from the decades-old experiment.

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Episode Transcript

In 1939, researchers at a prominent American university began an experiment involving children at an orphanage in Iowa. The children were divided into groups, subjected to very different forms of speech therapy, And in some cases told that something was wrong with the way they spoke. The study was never formally published and for decades, few people outside a small academic circle knew what had happened. Learn more about the monster study. One of the most controversial experiments in the history of psychology on this episode of Everything Everywhere Daily. This episode is sponsored by Quince. Autumn is here, which means it's time to start bringing out all your cold weather gear. And for me, it means taking out my Quince Mongolian cashmere sweaters and my Quince blankets. I have a thick fisherman's blanket for sitting on the couch and an organic waffle bed blanket that I use as a bed cover. My Quince products not only keep me warm, but they look really good too, and they do so at a fraction of the price of other retailers. Everything at Quince is priced 50 to 80% less than similar brands. They work directly with ethical factories and cut out the middlemen so you're paying for high quality, not brand markup. Find your next fall favorites at Quince. Download the Quince app for app exclusive offers or go to quince.com. Get free shipping on your order and three hundred sixty five day returns. Now available in Canada and The UK too. And when Quince asks you where you heard about them, let them know it was Everything Everywhere Daily. It's the best way to support the show. This episode is sponsored by Mint Mobile. If you had to choose between two identical items, but one was cheaper than the other, you'd choose the cheaper one. Right? That's not a theoretical scenario. That is the choice you can make right now with Mint Mobile. Mint Mobile works with your current phone, your current phone number, and you can keep all your contacts. It uses the T Mobile network, which is the fastest mobile network in The United States. You just spend less money because Mint Mobile doesn't have the overhead of other mobile companies. That's why I recommend Mint Mobile. To get your new wireless plan for just $15 a month, go to Mint Mobile dot com slash e e d. That's mintmobile.com/eed. Cut your wireless bill to $15 a month at mintmobile.com/eed. That's it. There's no catch. Upfront payment of $45 for three months, $90 for six months, or a $180 for twelve month plan required, $15 per month equivalent. Taxes and fees extra. Initial plan term only. Greater than 50 gigabyte may slow when network is busy, includes up to 20 gigabyte hotspot. Capable device required. Availability, speed, and coverage varies. See mintmobile.com. One of the most controversial experiments ever conducted in psychology took place in 1939 at the University of Iowa led by researcher Wendell Johnson. Born in …

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