g is defined to be the thing that IQ tests, as a whole, measure. E.g. wikipedia:
Spearman named the common factor g for "general intelligence factor." In any collection of IQ tests, by definition the test that best measures g is the one that has the highest correlations with all the others
While the study you link to is pretty interesting, it doesn't claim anything about IQ, g, or intelligence.
Is it possible that the correlation between g and success isn't about raw intelligence, it's about being able to access one's intelligence in situations (like classrooms) which involve thresholds for easily improving one's status?
I'm not sure of what this means - what does it mean that "the correlation between g and success is about raw intelligence" ? Since g is pretty much an attempt to formalize what we mean by raw intelligence, that reads to me like "the correlation between raw intelligence and success is not about raw intelligence".
Maybe an unfamiliar environment distracts them, or maybe a competitive environment makes them concentrate more, or maybe a familiar environment makes them comfortable, or maybe students don't wanna embarrass themselves by making stupid mistakes in class, or maybe the kids on the streets aren't able to multiply - they "memorise" the whole thing (3x2 =6; 3x3 = 9, etc.) to make the transactions faster.
I like this forum lol.
maybe the kids on the streets aren't able to multiply - they "memorise" the whole thing (3x2 =6; 3x3 = 9, etc.) to make the transactions faster.
Well, multiplication is done largely by memory for everyone for small numbers. There's a lot of evidence for this, such as fMRI studies showing memory related areas of the brain being active during multiplication that aren't active during addition. Also people with strokes who then lose the ability to multiply almost always have other memory impairments. If the kids on the street are using memorization then they are doing the same thing as everyone else.
Wow, this is quite an amazing point. Put people in an uncomfortable environment, and then they get distracted more easily (and they lose motivation), and their scores might drop. The effect of this varies from group to group, but it can be quite significant. Wow.
Well, it suggests that "good at arithmetic" should have a modifier for environment.
It would be interesting to find best environments for specific skills for individuals. Afaik, relatively little effort has gone into this.
Although I have to wonder if the real explanation was some sort of mixup, rather than a grand scale flaw in the testing methodology, I have met one person who I would estimate to have been at least as intelligent as myself, who revealed his tested IQ, and it was approximately half of my own. I don't remember if he ever mentioned what type of IQ test it was he took, but if the tests are at all properly designed, individuals of similar intelligence should not fall large distances apart from each other on opposite sides of the median depending on which test they took.
It is certainly true that IQ tests are better at measuring within group differences than between group differences. And I believe that IQ doesn't predict much success in the US once you control for education. But it does predict longevity when controlling for wealth and education. The IQ literature has a very serious lack of studies comparing the effects of IQ to wealth or education.
I'm indulging in the simple pleasure of drawing large conclusions from a single study.... Why exams are nothing out of context:
Is it possible that the correlation between g and success isn't about raw intelligence, it's about being able to access one's intelligence in situations (like classrooms) which involve thresholds for easily improving one's status?