A comparison of the Guilford and Eysenck factors of personality

The correlations of factor scores from the Guilford-Zimmerman Temperament Survey (GZTS) with factor scores on the Eysenck Personality Inventory (EPI) and the Eysenck Personality Questionnaire (EPQ) were compared to predictions made by Guilford and Eysenck regarding the structure of personality. Factor structure of the GZTS was consistent with Guilford's proposed model. Eysenck's Neuroticism was strongly associated with Guilford's Emotional Stability (E) and E plus Objectivity (O) factors. Eysenck's Psychoticism had no counterpart on the GZTS, although it was associated with Restraint (R). EPI-Extraversion was related to both Guilford's Social Activity (SA) and Introversion-Extraversion (IE) second-order factors, while EPQ-Extraversion was related only to SA. Findings are discussed in terms of Eysenck's evolving definition of Extraversion and the emerging importance of the Impulsivity primary factor.