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If anyone is interested, PCA is used in scale development to help reduce the number of items down to something useful. It is typically followed by a factor anal
by HelloMcFly 14y ago
If anyone is interested, PCA is used in scale development to help reduce the number of items down to something useful. It is typically followed by a factor analysis to determine factors, though far too many use PCA in place of a factor analysis. I didn't realize it was used much outside of measurement.
- kyzyl 14y agoPCA and other similar forms of dimensionality reduction are used all over the place, from healthcare to control systems to financial analysis. These days it is most often used as a preprocessing step for some other analysis routine, though.