/sci/ - Science & Math

>>6423912
>"g" or general intelligence
>>6422556
>"g"

"g" could easily be falsified. All you need to do is design an intelligence test that doesn't correlate with "g". Many have tried, but no one has been able to.

The most "g" loaded questions on IQ tests are those with the highest heritability. All it would take for "g" to exist is an allele that has a general net positive effect on the brain (maybe it makes all regions more efficient, neuron-dense, or larger, etc.).

However, I guess it's possible assortative mating could emulate that effect if people with some beneficial allele also are more likely to have other beneficial alleles. That would still make them more intelligent in general, but not because of a higher general intelligence but rather generally higher specific intelligences, if you're so inclined. Realistically, it's some combination of the two.

The existence of "g" doesn't mean specific intelligences don't exist too, "g" just happens to be easy to measure, highly heritable, stable (Flynn effect hasn't increased "g"), has strong biological correlates (such as brain size) and provides the predictive value of IQ tests.

>>6310456
IQ tests are standardized, and then the scores are multiplied by 100 and the standard deviation is multiplied by 15 (or 16 or 24, rarely).

For a normal distribution 100 is ofc the mean.

>>6310462
All concepts are made up.

And yes, pattern/induction tests are good measures of g, cf. picture.

>>6310465
All major IQ tests have 100 as their mean. But the SAT/ACT have other scores.

>>6310494
Logic is highly g-loaded. Logic is very much like math.

>>6296949
Intelligence is idealized g factor.

>>6195081
There are a lot of infographics about IQ.

>>6167046
Sometimes researches do indeed use "general cognitive ability" instead of intelligence, but it means the same in that context, i.e. true g score.

Picture related. There is nothing 'subjective' about intelligence.

>>6133834
No.

A good reply to the first is:
http://humanvarieties.org/2013/04/03/is-psychometric-g-a-myth/

The second one doesn't really show anything.

Thurstone did not disprove g. His primary abilities are positively correlated which means that there is a more general factor... g.

Pic related.

Intelligence is perfectly measured g.

Yes, it is called intelligence (g-factor).

There is a positive correlation between pretty much any two cognitive tests you can think of.

Intelligence is g.

>>6092535
No, the scientific consensus definition of intelligence is g factor from a large battery of diverse tests.

Cf. picture.