1. Transformation analysis of factorial data;Ahmavaara;Annls Acad. scient. fenn., Ser. B,1954
2. The Psychometric Software Package—X Series Version 1;Barrett,1985
3. The assessment of personality factors across 25 countries;Barrett;Person. individ. Diff.,1984
4. Personality factors in the Eysenck Personality Questionnaire;Barrett;Person. individ. Diff.,1982
5. The itemetric properties of the Eysenck Personality Questionnaire: a reply to Helmes;Barrett;Person. individ. Diff.,1982