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2. P scale and psychosis: Continued concerns;Block;J. abnorm. Psychol.,1977
3. The Scree test for the number of factors;Cattell;Multivar. behav. Res.,1966
4. Manual of the Eysenck Personality Questionnaire;Eysenck,1975
5. Psychoticism as a Dimension of Personality;Eysenck,1976