Again, I wasn’t talking about Asian immigrants specifically, though I suspect that if you controlled for college-educated parents, much of that difference would disappear.
I am not trying to describe something that is “typical”–most Asians aren’t in spelling bees, either–but something that does happen and could explain why some individuals in certain groups might make choices that seem pointless to people that know the system.
Manda, at this point I would provisionally agree with you that it is a low yield exercise (provisionally, because I do not have the data to validate your hypothesis regarding non-proportionality of rewards with commitment).
However, I have to point out this: the way you said it, it can be interpreted as if the “commitment-confusion” is the only explanation of the Indian success. (Some people in this thread have already interpreted it that way.) But, that is surely not true. There are almost equal number of Indian kids in the semis as the white kids. (The kids in the semis are all very keen on winning the competition. So, they have comparably commitment.) But, in the final round there are only two white kids left, whereas there are seven Indian kids. How do you explain that?
I am not suggesting that Asian kids are genetically superior to white kids. My explanation is that Indians (as well as some other Asians) are taught early on by their parents. That is a part of their traditional parenting. So, they get more practice on stuff like spelling, reasoning and math.