Factor analysis cannot reveal causal structure, so it provides no support for the reality of g, the general factor of intelligence.

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• Designed experiments can reveal causal relationships that observational data alone cannot determine. ENElizabeth Van Nostrand15 Nov 2025
• Understanding the future depends more on imagination and a clear theory of change than on analytical skill alone. NBNat Bullard9 Dec 2024
• Delaying intuition until each dimension has been assessed separately and a whole profile exists tends to give a better judgment, because rapid intuitions are not particularly good. DKDaniel Kahneman12 Oct 2019
• Complex systems do not have one root cause, so root-cause analysis is the wrong thing to be doing. JCJason Cohen25 Jan 2026
• Solely measuring skill at any given task falls short of measuring intelligence, because skill is heavily modulated by prior knowledge and experience. FCFrançois Chollet5 Nov 2019

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