Genghis Pwn
Banned
- Joined
- May 2, 2003
- Messages
- 521
bpesta22 said:
The black white difference on IQ tests is 15 points-- about 1 SD, which puts the effect size at 1.0.
As posted earlier, here are some guidelines from the well-respected statistician (who doesn't publish in this area, and gives these estimates as guidelines for science in general), Cohen:
Effect sizes of .2 are considered small, .4 medium and .6 large.
1.0-- the black white difference-- is so large, Cohen has no name for it.
IIRC, only 14% of blacks score average on an IQ test, with only 3% scoring one SD above.
The differences are not trivial, and to the extent that IQ correlates with important life outcomes (which it does-- see previous threads) the group difference here is a likely (but not sole) explanation for why blacks do so poorly when it comes to things like education, ses, etc.
The data are the data.
B
What part of this is not clear?
M&H thought that genetics accounted for about 60% of IQ outcome. That leaves plenty of room for environmental factors. Of course environment plays a role. But for your guys to sit here and spin so much and make up all these totally lame diversions and excuses reflects very poorly on your critical thinking ability. You seem dead-set against accepting the facts and data because you don't like -- or are uncomfortable with -- the conclusion that whites and asians have higher IQs than blacks. Why can't you admit it? It's really absurd. IQ scores are beyond disupte. 15 points is not a small number.
You can make excuses about the tests being "culturally biased" but asians from such diverse places as Vietnam, Korea, Japan and China seem to have absolutely no problem at all adjusting to the "culture" of IQ tests.
Isn't the more obvious answer that maybe white people and asians are a little bit smarter than blacks on average?
Hey jj, I think this would be a better avatar for you...