The formula for coefficient alpha for a component is developed. Kaiser's special formula for coefficient alpha for a principal component and the Kaiser-Guttman Rule for the “number of components” are mentioned. A numerical example is added. It is conjectured that the sum of coefficients alpha is invariant under orthogonal rotation.
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References
1.
KaiserH. F. (1957) Alpha-reliability of components and factors. (Unpublished manuscript, Bureau of Educational Research, College of Education, Univer. of Illinois).
2.
KaiserH. F. (1960) The application of electronic computers to factor analysis. Educational and Psychological Measurement, 20, 141–151.
3.
KaiserH. F. (1973) The JK method: A procedure for finding the eigenvectors and eigenvalues of a real symmetric matrix. Computer Journal, 15, 271–273.
4.
KaiserH. F. (1986) The application of electronic computers to factor analysis. Current Contents, 40, 18.
5.
KaiserH. F. (1991) Coefficient alpha for a principal component and the Kaiser-Guttman Rule. Psychological Reports, 68, 855–858.
