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Factor analysis always finds a general factor whenever tests are all positively correlated, so finding g is trivial.
Drawn from what Cosma Rohilla Shalizi said
What Cosma Rohilla Shalizi actually said
- Cosma Rohilla Shalizi Statistician at Carnegie Mellon; writes on complex systems
Factor analysis is handy for summarizing data, but can't tell us where the correlations came from; it always says that there is a general factor whenever there are only positive correlations. The appearance of g is a trivial reflection of that correlation structure.
Added to korrents 31 Oct 2026 · How quotes work · Something wrong? Tell us
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