1. The assessment of personality factors across 25 countries;Barrett;Person. individ. Diff.,1984
2. The location of superfactors P, E and N within an unexplored personality factor space;Barrett;Person. individ. Diff.,1980
3. Manual of the Eysenck Personality Questionnaire;Eysenck,1975
4. Psychoticism as a Dimension of Personality;Eysenck,1976
5. Factor analytic examination of Kline's scales for psychoanalytic concepts;Howarth;Person. individ. Diff.,1982