The Barnum Effect & Astrology

John Stossel demonstrates the Barnum Effect.
Raigensays...

I have a good question: Why don't major news networks do stuff like this anymore? There's a plethora of bullshit out there than can be tested and reported on to educate the people.

Acupuncture, Homeopathy, Relexology, Reiki, Crystal Healing, Speaking to the Dead, Foot Detox (I get a flyer for this once a week in my mail slot).

It would mean so much more to the general public if this sort of story were broadcast by a news network, and not Pen & Teller, or even Randi when he had his own shows. They can be considered entertainment, and even though the news, quite frankly, has degraded into entertainment, the majority still see it as where they go to get their facts.

HadouKen24says...

Not entirely a fair look at astrology. Not all astrologers produce charts as susceptible to the Barnum effect. Some of the most popular do; the Barnum effect depends on a certain flattery, which make people really like the readings they get. But it's not entirely inevitable.

To accurately gauge whether astrologers really are at all accurate about people, you'd have to have a control group given random charts, and a test group given their own charts. If the test group reports a better match than the control group, then astrology is (somewhat) vindicated.

This has been done, actually. But there wasn't much of a difference between the test and the control.

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