1. The Significance of Simple Structure in Factor Analysis;Bargmann,1954
2. The location of superfactors, P, E and N with an unexplored factor space;Barrett;Person. Indiv. Diff.,1980
3. Personality Factors in the Eysenck Personality Questionnaire;Barrett;Person. Indiv. Diff.,1980
4. The observation to variable ratio in factor analyses;Barrett;Personality Study and Group Behaviour,1981
5. Radial parcel factor analysis;Barrett;Person. Indiv. Diff.,1981