1. The mathematical theory of factorial invariance under selection;Ahmavaara;Psychology,1954
2. The estimation of factor indeterminacy;Budescu;Educ. psychol. Measur.,1983
3. Reliability and Validity Assessment;Carmines,1979
4. A misapplication of factor analysis;Cartwright;Am. sociol. Rev.,1965
5. The Scree test for the number of factors;Cattell;Multivar. behav. Res.,1966