Anonymous wrote:Identical twins do not get same grades
siblings from same set of parents would theoretically have same iq and therefore as accomplished in school, but they are not

Grades aren't the same as IQ. Everyone know the story about Albert Einstein flunking math in grammar school. IQ refers to the ability to learn and ease of learning not the use of that ability.


Yes, IQ is inherited. Many other things play a role in it but smart parents usually create smart children, average parents create average children. Exceptions exist, of course, but it seems pretty clear at this point that intelligence is genetic.

Identical twins do not get same grades
siblings from same set of parents would theoretically have same iq and therefore as accomplished in school, but they are not

Intelligence can be molded throughout your life. The more studious you are and the more you apply yourself, the more you learn.
If you've heard about the marshmallow test, then you know that there was a correlation between the children who were able to restrain themselves from eating the marshmallow and higher SAT scores.
As an anecdotal example my sister was smarter than me in school. She would learn things right away whereas I needed to have things explained to me several times. But she was a very lazy scholar and hated studying. I ended up a scientist and she spent most of her twenties globe trotting and is just starting her career at the age of thirty. I wouldn't say one of us is more "successful" than the other. She has great life stories and I have a great 401k.

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Anonymous wrote:My younger DD is much, much brighter than her dad or I. And both of us are very intellectually-inclined people who did well in school (good GPAs, grad school degrees, etc.). Therefore, if you are correct, she was probably swapped in the hospital.

I'm the OP and I'm not the one who thinks that straight IQ is subject to reversion to the mean - so no, I think you and your DH should have expected a very bright daughter.

We hoped for very bright, but knew very bright people who had average or below children so we didn't expect anything. We were not prepared for "Oh, crap, she's clearly already a lot smarter than us." by pre-school.

Your preschooler is smarter than you are? That is very odd.

It IS odd. And a bit stressful. Clearly she isn't more educated, but it was evident by age 3 that she learned extremely fast with virtually no repetition and wasn't just parroting things back. She's in ES now and far advanced of where we were in middle school.

I feel like all kids are much more advanced from where we were. Things are so different now.

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Anonymous wrote:My younger DD is much, much brighter than her dad or I. And both of us are very intellectually-inclined people who did well in school (good GPAs, grad school degrees, etc.). Therefore, if you are correct, she was probably swapped in the hospital.

I'm the OP and I'm not the one who thinks that straight IQ is subject to reversion to the mean - so no, I think you and your DH should have expected a very bright daughter.

We hoped for very bright, but knew very bright people who had average or below children so we didn't expect anything. We were not prepared for "Oh, crap, she's clearly already a lot smarter than us." by pre-school.

Your preschooler is smarter than you are? That is very odd.

It IS odd. And a bit stressful. Clearly she isn't more educated, but it was evident by age 3 that she learned extremely fast with virtually no repetition and wasn't just parroting things back. She's in ES now and far advanced of where we were in middle school.

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Anonymous wrote:OP: So if straight IQ is genetic... then when both parents have high IQs, doesn't it make sense that they assume their child will have a high IQ and make educational plans accordingly?

No.

Statistics apply to the population, not to the individual.

So substitute "high intelligence" instead of "IQ". When both parents are highly intelligent, doesn't it make sense to assume their child will be highly intelligent and make educational plans accordingly?

No. Same thing.

Not the PP but no, IQ scoring and intelligence are not the same thing.

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Anonymous wrote:OP: So if straight IQ is genetic... then when both parents have high IQs, doesn't it make sense that they assume their child will have a high IQ and make educational plans accordingly?

No.

Statistics apply to the population, not to the individual.

So substitute "high intelligence" instead of "IQ". When both parents are highly intelligent, doesn't it make sense to assume their child will be highly intelligent and make educational plans accordingly?

No. Same thing.

Anonymous wrote:And by intelligence, I mean the ability to learn easily and retain the information.

It certainly seems to me that intelligent parents have intelligent kids. And in terms of intelligence only, average parents have average kids. And before you attack, I am only talking about the ease of learning and retaining what was learned. Millions of people with average intelligence go on to be billionaires in business, have magnificent marriages and happy fulfilled lives...

This has been studied. Intelligent people can have an average kid, dumb kid or an intelligent kid.
intelligence is not just genes, environment and diet also matter.

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Anonymous wrote:My younger DD is much, much brighter than her dad or I. And both of us are very intellectually-inclined people who did well in school (good GPAs, grad school degrees, etc.). Therefore, if you are correct, she was probably swapped in the hospital.

I'm the OP and I'm not the one who thinks that straight IQ is subject to reversion to the mean - so no, I think you and your DH should have expected a very bright daughter.

We hoped for very bright, but knew very bright people who had average or below children so we didn't expect anything. We were not prepared for "Oh, crap, she's clearly already a lot smarter than us." by pre-school.

Your preschooler is smarter than you are? That is very odd.

It IS odd. And a bit stressful. Clearly she isn't more educated, but it was evident by age 3 that she learned extremely fast with virtually no repetition and wasn't just parroting things back. She's in ES now and far advanced of where we were in middle school.

OP, what is the purpose of the question?

yes, somewhat (other factors matter, there's a whole lot of random and some regression to the mean) and exacerbated by assortative mating.

Anonymous wrote:Yes, if DH and I both had IQs that topped 180, we would definitely make the assumption that our off-spring would be equally intelligent and would make plans accordingly (we don't so no worries here).

Another question - is talent inherited? If you and partner are both concert pianists would you make the assumption that your off-spring would also possess the same talent (excluding physical complications as PP said)?

If that were true, we should see some unbelievably awesome tennis players from Steffi Graf and Andre Agassi!

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Anonymous wrote:My younger DD is much, much brighter than her dad or I. And both of us are very intellectually-inclined people who did well in school (good GPAs, grad school degrees, etc.). Therefore, if you are correct, she was probably swapped in the hospital.

I'm the OP and I'm not the one who thinks that straight IQ is subject to reversion to the mean - so no, I think you and your DH should have expected a very bright daughter.

We hoped for very bright, but knew very bright people who had average or below children so we didn't expect anything. We were not prepared for "Oh, crap, she's clearly already a lot smarter than us." by pre-school.

Your preschooler is smarter than you are? That is very odd.

Anonymous wrote:

Anonymous wrote:My younger DD is much, much brighter than her dad or I. And both of us are very intellectually-inclined people who did well in school (good GPAs, grad school degrees, etc.). Therefore, if you are correct, she was probably swapped in the hospital.

I'm the OP and I'm not the one who thinks that straight IQ is subject to reversion to the mean - so no, I think you and your DH should have expected a very bright daughter.

We hoped for very bright, but knew very bright people who had average or below children so we didn't expect anything. We were not prepared for "Oh, crap, she's clearly already a lot smarter than us." by pre-school.

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Anonymous wrote:Yes. The IQ of boys is inherited mostly from their mothers.

http://www.independent.co.uk/news/brainy-sons-owe-intelligence-to-their-mothers-1339099.html

Very interesting link - thank you!

I can't wait to show it to my DH.