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-   -   This Ought To Get Some Replies (http://archives2.twoplustwo.com/showthread.php?t=401817)

hmkpoker 12-30-2005 12:31 PM

Re: This Ought To Get Some Replies
 
If I remember correctly, identical twins separated at birth show a very, very strong correlation in IQ testing, somehting like 90%. Fraternal twins were much lower, almost 50%, and brothers, cousins and down the line were virtually random.

Genetics does play a role, no question about that. But just because it does doesn't mean that one race is significantly genetically superior in intelligence to another.

Borodog 12-30-2005 12:45 PM

Re: This Ought To Get Some Replies
 
[ QUOTE ]
If I remember correctly, identical twins separated at birth show a very, very strong correlation in IQ testing, somehting like 90%. Fraternal twins were much lower, almost 50%, and brothers, cousins and down the line were virtually random.

[/ QUOTE ]

Actually, this argues for a very strong environmental influence. If normal brothers are significantly less correlated in IQ scores than are fraternal twins, then the difference in the environment during the upbringing of the brothers must make up the difference in correlation, since fraternal twins are no more distant genetically than regular siblings. The identical twins get the double whammy of identical genetics and identical environments.

hmkpoker 12-30-2005 12:49 PM

Re: This Ought To Get Some Replies
 
Exactly.

Rduke55 12-30-2005 01:32 PM

Re: This Ought To Get Some Replies
 
[ QUOTE ]
[ QUOTE ]
If I remember correctly, identical twins separated at birth show a very, very strong correlation in IQ testing, somehting like 90%. Fraternal twins were much lower, almost 50%, and brothers, cousins and down the line were virtually random.

[/ QUOTE ]

Actually, this argues for a very strong environmental influence. If normal brothers are significantly less correlated in IQ scores than are fraternal twins, then the difference in the environment during the upbringing of the brothers must make up the difference in correlation, since fraternal twins are no more distant genetically than regular siblings. The identical twins get the double whammy of identical genetics and identical environments.

[/ QUOTE ]

And all that prenatal stuff.

Borodog 12-30-2005 02:01 PM

Re: This Ought To Get Some Replies
 
Isn't "all that prenatal stuff" environmental?

Rduke55 12-30-2005 02:21 PM

Re: This Ought To Get Some Replies
 
[ QUOTE ]
Isn't "all that prenatal stuff" environmental?

[/ QUOTE ]

Yeah but people often just consider upbringing as the only environmental conditions when they talk about this stuff.

theBruiser500 12-30-2005 02:36 PM

Re: This Ought To Get Some Replies
 
[ QUOTE ]
Since, in the long run, the busier these forums are, the more money I make, I couldn't let this comment from Phil153 get buried in another thread.

[/ QUOTE ]

Slansky, you are a joke, you are the worst poster on this site.


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