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/sci/ - Science & Math

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5145285 No.5145285 [Reply] [Original]

Why are some people more intelligent than others? Do you think it's genetic, or a result of upbringing, or a combination? I'd like to hear your thoughts.

>> No.5145293

combination

/thread

>> No.5145294

>>5145285
>a combination

>> No.5145311

First of all, your opinion on this subject is as irrelevant as your opinion on "does prayer work?"

Second of all, intelligence is defined as follows:
An influential theory of the structure of intelligence was proposed by Cattell (1941, 1971) and extended by Horn (1968, 1985). Cattell and Horn identified two major components, which they labeled fluid intelligence (Gf) and crystallized intelligence (Gc). Fluid intelligence is a largely nonverbal form of mental efficiency related to a person’s capacity to learn and solve new problems. By contrast, crystallized intelligence represents what one has already learned through the investment of fluid intelligence in cultural settings.

This is a field that has been studied extensively and the results speak for themselves.

Fluid intelligence has a strong genetic component and there is very weak correlation between fluid intelligence and upbringing.

Crystallized intelligence, obviously, correlates strongly with upbringing.

tl;dr how quickly you learn, your ability to solve unfamiliar problems and your raw capacity for logic have little do with your upbringing or the environment in which you grew. It's mostly down to genes and to an extent, luck.

>> No.5145314

I don't know shit, but the J at the end of my INTJ means i'm already convinced that it's genetic.

>> No.5145317

>http://en.wikipedia.org/wiki/Heritability_of_IQ
Estimates in the academic research of the heritability of IQ have varied from below 0.5 to a high of 0.9. A 1996 statement by the American Psychological Association gave about .45 for children and about .75 during and after adolescence. A 2004 meta-analysis of reports in Current Directions in Psychological Science gave an overall estimate of around .85 for 18-year-olds and older.

>> No.5145320

>>5145317
TL;DR: The heritability of IQ varies with age, with genetics becoming more important later in life.

>> No.5145332

>>5145285
Define intelligence

>> No.5145347
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5145347

http://moemesto.ru/rorschach_club/file/6314265/182%20bouchard%202003.pdf
>Psychological researchers typically distinguish five major domains of individual differences in human behavior: cognitive abilities, personality, social attitudes, psychological interests, and psychopathology (Lubinski, 2000). In this article we: discuss a number of methodological errors commonly found in research on human individual differences; introduce a broad framework for interpreting findings from contemporary behavioral genetic studies; briefly outline the basic quantitative methods used in human behavioral genetic research; review the major criticisms of behavior genetic designs, with particular emphasis on the twin and adoption methods; describe the major or dominant theoretical scheme in each domain; and review behavioral genetic findings in all five domains. We conclude that there is now strong evidence that virtually all individual psychological differences, when reliably measured, are moderately to substantially heritable.

>> No.5145348
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5145348

>>5145332
>Define intelligence

http://www.udel.edu/educ/gottfredson/reprints/1997mainstream.pdf
>1. Intelligence is a very general mental capability that, among other things, involves the ability to reason, plan, solve problems, think abstractly, comprehend complex ideas, learn quickly and learn from experience. It is not merely book learning, a narrow academic skill, or test-taking smarts. Rather, it reflects a broader and deeper capability for comprehending our surroundings - “catching on,” “ making sense” of things, or “figuring out” what to do.

>> No.5145366

>>5145314
Fuck off with that shit, there's nothing that pisses me off more than "psychological profiles".

>> No.5145577

>>5145348

you mean like making sense of and figuring out what to do if you are dropped naked in the Amazon jungle?
or just solving pattern matching puzzles?

>> No.5145588

>>5145366
>implying they aren't real

>> No.5145590

>>5145588
>implying it's not astrology for students