Deciding on the ratio of number of subjects to number of variables in factor analysis
Baggaley, A. R. (1982). Deciding on the Ratio of Number of Subjects to Number of Variables in Factor Analysis. Multivariate Experimental Clinical Research, 6(2), 81-85.
The appropriate rations among the number of subjects, variables, and retained factors in a factor analysis has been much disputed. A theoretical rationale is developed for deciding on the ration of subjects to variables. Some rules of thumb are suggested for this and related issues.