Comparison of factor structures and criterion-related validity coefficients for two measures of personality based on the five factor model.

The factor structure and criterion-related validity for 2 types of personality measures that are based on 5 factor models were studied. Confirmatory factor analysis was used to compare a 5 versus 6 factor model in an applied setting. In addition, criterion-related validity coefficients were examined for the 2 inventories. Two Big Five measures were used-1 was an adjective-based bipolar inventory and the other was a questionnaire (NEO-Personality Inventory; PI)-to shed light on the relationships between inventory characteristics, factor structure, and criterion-related validity. The sample consisted of 423 flight attendant trainees. Results indicated that the 6 factor model provided a better fit for both measures compared with the 5 factor model. Scales from the NEO-PI were significantly correlated with measures oftraining success, whereas scales from the bipolar inventory were not.