1. A reanalysis of a test of the theory of two factors;Blakey;Psychometrika,1940
2. The analysis of examination marks;Burt,1936
3. A criterion for significant common factor variance;Coombs;Psychometrika,1941
4. Recent studies of the English composition test;Huddleston;College Board Review,1948
5. The inverted factor technique;Stephenson;Brit. J. Psychol.,1936