Please take the following test, and send answers to EASIESTQUESTION@HOTMAIL.CA
Anyone who answers at least 50% correctly will be listed as a recipient of the prestigious Pumpkin Person degree in heritability, and anyone who scores in the top 10% of test takers will be listed as a magna cum laude graduate. You may not discuss questions or answers in the comment section.
TEST QUESTIONS ………………………………………
ALL QUESTIONS ASSUME THE PHENOTYPE = GENOTYPE + ENVIRONMENT MODEL; ALL ANSWERS ASSUME BROAD HERITABILITY
1) If the correlation between identical twins separated from conception into random American environments is 0.8, what is the heritability of IQ in America?
2) If everyone had the exact same environment, what would be the heritability of IQ?
3) If everyone had the exact same genes, what would be the heritability of IQ?
4) If IQ has a heritability of 0.8 in America, what is the correlation between IQ and genetic IQ among Americans who as embryos, were implanted into random wombs and were adopted into random homes?
5) If g has a heritability of 0.8, and only the g component of IQ was heritable, what would be the heritability of an IQ test with a g loading of only 0.6?
6) If the IQ of the same individuals tested twice correlate 0.9, and the IQ correlation of identical twins raised together is 0.8, what percentage of IQ variation is explained by unshared environment, uncorrected for reliability?
7) If the IQ of the same individuals tested twice correlate 0.9, and the IQ correlation of identical twins raised together is 0.8, what percentage of IQ variation is explained by unshared environment, corrected for reliability?
8) If the IQ correlation between criminal fathers and their criminal children is 0.5, and the average criminal has an IQ of 90, what would be the average IQ of criminal children who have criminal fathers with an IQ of 150?
9) If the IQ correlation between criminal fathers and their criminal children is 0.5, and the average criminal has an IQ of 90, what would be the average IQ of criminal fathers who have criminal children with an IQ of 150?
10) If the IQ correlation between MZ twins raised together in America is 0.9 and the correlation between DZ twins raised together in America is 0.5, what is the heritability of IQ in America believed to be?
11) If heritability in America is 0.8, and Americans have a mean IQ of 98 with a standard deviation of 15, and each American has an identical twin, born, raised, and gestated in the Third World and their Third World twins have a mean IQ of 75, and an SD of 15; what would be the IQ correlation of the separated identical twins?
12) If heritability in America is 0.8, and Americans have a mean IQ of 98 with a standard deviation of 15, and each American has an identical twin, born, raised, and gestated in the EXACT SAME Third World environment and their twins have a mean IQ of 75; what would be the IQ correlation of the separated identical twins?
13) If the IQ correlation between people in China and their identical twins in Kenya is 0.5, assuming every country has the same environmental variability, what would be the IQ correlation between identical twins separated randomly all over the World if average environmental differences between countries was controlled for?
14) If brain size correlates 0.4 with general intelligence, and natural selection for general intelligence alone caused brain size to increase by 2 standard deviations, by how many standard deviations did general intelligence increase?
Pumpkin Person 
Looks like this Caltech dropout just graduated magna cum laude from Pumpkin Person U!
Holler!
stupid people don’t they’re stupid.
I wish all of my degrees had been as quick as this one!
Looks like I’m gonna be finishing up on third degree soon…I’ll send in my answers as soon as I’m done.
Damn, I got half through this and never finished.
I guess I had better things to do 😕
Wait, are you still accepting submissions?
Yes. Still accepting submissions.
i should’ve pointed out if anyone reads these comments that not only is P(G, E) not equal to G + E, but E is itself a function of time and G. G is fixed at conception whereas E changes and can be changed by the individual himself.
so P(G, E(G, E0, t)) is the right way of thinking about it. E0 is the intital environment, t is time of course.
Pumpkin,
Hmm. I’ve had my share of statistics classes (long ago), but not in this area, so I cry uncle, though it’s annoying because it can be done. (Sorry, I’ve grown lazy in my middle age. Also, in my field, I only need to use ridiculously easy statistics, so the skills have grown quite rusty.) Regardless, could you recommend a book or two for a reasonably knowledgeable beginner in genetics. I’ve been meaning to do that for a while, so it’d be nice to have someone point me in the right direction.
Thanks.
I would start by making sure you get clear on certain statistical concepts (assuming you’re not) such as “standard deviation”, correlation, “percentage of variation” and standardized linear regression.
Once you’ve looked up and understand all that, I would just do a google search on heritability and how its calculated from twin studies.
I would also read Jensen’s book “The g Factor”; he has a chapter on heritability. I haven’t read the entire chapter, but Jensen’s scholarship is generally outstanding, interesting and lucid.
Reading that book alone is far better than a university education.
a book on genetics is the LAST thing that would help.
just read wikipedia. AND read Not in Our Genes and books like it.
without exception psychologists do not understand it, and so-called “behavior genetics” has absolutely nothing to do with genetics. it’s a subfield of psychology.
btw, i’ve NEVER read ANY of these books.
i came to my conclusions 100% independently.
but pp is too fucking retarded to realize that that’s possible.
Get your degree in heritability from the prestigious Pumpkin Person institute of behavioral genetics, then you can have an opinion.
Btw I find it very easy to believe you’ve never read those books, or any other book for that matter.
here’s my edit to the wikipedia article on hereditatrianism. it’s stood for months. it will stand until pp and his ilk delete it, as they are exactly what they accuse their imagined opressors of being, namely stalinists who simply won’t allow any disagreement with their pseudo-science.
The dominant view outside psychology among biologists and geneticists is that both of these are gross oversimplifications and that the behavioral/psychological phenotype for human beings is determined by a function of genes and environment which cannot be decomposed into a sum of functions of the two independently. And this especially because human behavior is uniquely plastic compared to that of other animals. The commonly cited heritability, h2, is meaningful only in the context of the independent effects model. This model may be a good approximation to the real function given that the range of genomes and the range of environments is sufficiently narrow, e.g., white upper middle class Americans living in Chicago. Otherwise it is both meaningless and misleading to the extent it is supposed to have any meaning at all.
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How do you separate identical twins at conception? Don’t you have too wait at least nine months, until they are born?