1999: "Selection Effect"

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Kludgy
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1999: "Selection Effect"

Postby Kludgy » Mon May 28, 2018 6:17 pm UTC

Image
Title text: fMRI testing showed that subjects who don't agree to participate are much more likely to escape from the machine mid-scan.

What a statistic

Yupa
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Re: 1999: "Selection Effect"

Postby Yupa » Mon May 28, 2018 6:18 pm UTC

While only a small number of people who agree to the experiment will later change their mind and call the police, an even smaller percentage of the overall population will ever be in the lab at all, willingly or not. Hence I doubt the conclusion of this study.

rmsgrey
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Re: 1999: "Selection Effect"

Postby rmsgrey » Mon May 28, 2018 6:21 pm UTC

Yupa wrote:While only a small number of people who agree to the experiment will later change their mind and call the police, an even smaller percentage of the overall population will ever be in the lab at all, willingly or not. Hence I doubt the conclusion of this study.


That's why it's so important to come up with a suitable methodology to ensure a properly stratified sample...

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CorruptUser
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Re: 1999: "Selection Effect"

Postby CorruptUser » Mon May 28, 2018 6:44 pm UTC

Heh, this reminds me of The Onion's "Sex House".

"The took away our phones and internet and any means of contacting the outside world"

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rhomboidal
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Re: 1999: "Selection Effect"

Postby rhomboidal » Mon May 28, 2018 6:46 pm UTC

"And by lab, I mean torture chamber. For science."

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Pfhorrest
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Re: 1999: "Selection Effect"

Postby Pfhorrest » Mon May 28, 2018 8:29 pm UTC

rhomboidal wrote:"And by lab, I mean torture chamber. For science."

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ObsessoMom
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Re: 1999: "Selection Effect"

Postby ObsessoMom » Tue May 29, 2018 12:09 am UTC


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zjxs
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Re: 1999: "Selection Effect"

Postby zjxs » Tue May 29, 2018 12:57 am UTC

You'll need about 150 subjects on either arm for sufficient power.

Statistical power, obviously.

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eviloatmeal
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Re: 1999: "Selection Effect"

Postby eviloatmeal » Tue May 29, 2018 6:13 am UTC

"This MRI data set suggests that people who are extremely claustrophobic have a very blurry hippocampus. Perhaps this is the key to finding a cure."
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orthogon
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Re: 1999: "Selection Effect"

Postby orthogon » Tue May 29, 2018 11:20 am UTC

We shouldn't be too hard on Ponytail. She herself was an unwitting participant in a study on the effectiveness of ethics committees. It's not her fault she was assigned to the placebo committee.
xtifr wrote:... and orthogon merely sounds undecided.

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Keyman
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Re: 1999: "Selection Effect"

Postby Keyman » Tue May 29, 2018 2:26 pm UTC

Title text: fMRI testing showed that subjects who don't agree to participate are much more likely to escape from the machine mid-scan.

More likely to actually escape, or try to escpae.... BWAH-HA-Ha-ha-ha!!
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qvxb
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Re: 1999: "Selection Effect"

Postby qvxb » Wed May 30, 2018 3:25 am UTC

Ponytail read the transcripts of the Nuremberg Trials.


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