Abstract

A six-dimensional model of personality structure, named the HEXACO model, was proposed to incorporate the new evidence emerging from recent multi-language lexical studies of personality structure. This new model differs from the widely accepted Big Five model in two important ways. First, a new sixth factor, Honesty-Humility, has been added as a major dimension of personality. Second, two factors in the Big Five model, namely Agreeableness and Emotional Stability, have been reconceptualized by re-rotating their axis locations to reflect findings from the majority of lexical studies. New empirical evidence indicates that the HEXACO model by far outperformed the Big Five model in predicting some important constructs in I/O psychology such as workplace deviance and sexual harassment proclivities. The importance of adopting the optimal framework of personality structure was discussed in the context of I/O research.