r-cran-nfactors

GNU R analysis and solutions to the Cattell Scree test

Description

This GNU R package provides parallel analysis and non graphical solutions to the Cattell Scree Test.

Indices, heuristics and strategies to help determine the number of factors/components to retain:

1. Acceleration factor (af with or without Parallel Analysis);

2. Optimal Coordinates (noc with or without Parallel Analysis);

3. Parallel analysis (components, factors and bootstrap);

4. lambda > mean(lambda) (Kaiser, CFA and related);

5. Cattell-Nelson-Gorsuch (CNG);

6. Zoski and Jurs multiple regression (b, t and p);

7. Zoski and Jurs standard error of the regression coeffcient (sescree);

8. Nelson R2;

9. Bartlett khi-2;

10. Anderson khi-2;

11. Lawley khi-2 and

12. Bentler-Yuan khi-2.

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