A computer program to compare factor matrices which have at least some variables in common is described. The program calculates both the salient variable similarity index and the congruence coefficient. The PLI program compares all factors in one matrix with all factors in the other matrix. There are no limits for the number of variables or factors in either matrix. The order of variables in one matrix may be changed to match the other and variables not shared by both matrices may be deleted.
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References
1.
Burt, C. L.Factors of the mind. London: University of London Press, 1940.
2.
Cattell, R. B.A note on factor invariance and the identification of factors. British Journal of Psychology (Statistical Section), 1940, 2(3), 134-139.
3.
Cattell, R. B.Personality and mood by questionnaire . San Francisco: Jossey-Bass, 1973.
4.
Cattell, R. B.Factor analysis, (2nd ed) New York: Harper , in press.
5.
Cattell, R. B., Balcar, K. R., Horn, J. L., and Nesselroade, J. R.Factor Matching Procedures: An improvement of the s Index; with tables. EDUCATIONAL AND PSYCHOLOGICAL MEASUREMENT, 1969, 29: 781.
6.
Gorsuch, R. L.Factor analysis. Philadelphia: W. B. Saunders, 1974 .
7.
Schneewind, K. A. and Cattell, R. B.Zum problem der faktoridentifikation. Psychologische Beitrage, 1970, 12, 214-226.
8.
Tucker, L. R.A method for synthesis of factor analysis studies. (Personnel Research Section Report 984. Washington D.C. D epartment of the Army, 1951.
9.
Wrigley, C. S. and Neuhaus, J. O.The matching of two sets of factors. A merican Psychologist, 1955, 10, 418.
