Isn't rationality just a subset skill of the general intelligence encapsulated by the brain, intelligence being the set of skills your brain can handle or the processing power of the brain? Just curious as I would see some who is relatively more rational as just more generally intelligent. Essentially is intelligence processing power? And are labels like RQ, IQ, EQ just different ways of demarking[sic] the tasks that a particular brain is good at handling?
Intelligence is the raw processing power of brain. It is biological; it remains more or less constant during adult life. It is like a brain speed and short-term memory capacity. Computer analogy: processor frequency and RAM memory. IQ tests are trying to measure this brain power, not a specific skill. Different IQ tests may use different types of simple tasks, and yet their results highly correlate.
Rationality is how you use your brain. It can be learned (and LW is trying to teach it). Computer analogy: software with its features and bugs. Rationality allo...
In their 2011 chapter for the Cambridge Handbook of Intelligence, Stanovich et al. review the evidence suggesting that intelligence and rationality are not the same thing and that rationality is often more important than intelligence. They then lament the fact that there are no standard tests for measuring one's "Rationality Quotient." Then they take a few steps toward such a thing by suggesting some important rationality skills (actively open-minded thinking, fine-grained emotional regulation, tendency to seek information and fully process it, etc.) and rationality 'mindware' (probability theory, scientific process, economic thinking, etc.).
Here are those pages in particular: first a graphic of some important rationality skills and mindware, and then a table of the components of rational thought: rationality components, relevant literature citations, and example word problems that would test for each rationality component.