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This article is concerned with the relationship between two distinct traditions in personality research: the dimensional or individual differences approach and the developmental stage or type approach. Research bridging these two traditions has been scarce although the possibility of measuring ego levels with self-report scales (Lorr & Manning, 1978) and the contribution of personality traits to the attainment of stages of moral development (Hogan, Johnson, & Emler, 1978) have been addressed. Both of these studies concentrated on dispositions or traits particularly relevant to interpersonal conduct or socialization . The present article considers the role of traits in the inner experiential aspects of ego development. Empirically, it tests the hypothesis that openness to experi
McCrae et al. (Mon,) studied this question.