To secure communality estimates for the classical factor model
A) the communalities from an initial principal components model can be used.
B) the smallest absolute value of the correlation of the variable with any other variable can be used.
C) the highest achieved communality from a principal components model can be used.
D) a separate communality estimate is unnecessary because the classical factor model simply uses 1's in the diagonal.
E) a and c.

Question

Quizplus · Accepted Answer

Both A and C are correct. In factor analysis, initial estimates of communalities can indeed be obtained from an initial principal components analysis, where either the communalities from this model can be used or the highest achieved communality for each variable can be selected. These estimates are used as starting points for further analysis in the classical factor model.

To Secure Communality Estimates for the Classical Factor Model