The Enneagram: A systematic review of the literature and directions for future research.

The Enneagram is a typology that many clients use to understand their personality and interpersonal patterns, despite some concerns about its validity. Thus, the purpose of this review is to provide a comprehensive and clinician-friendly review of the extant empirical work on the Enneagram. After reviewing 104 independent samples, we found mixed evidence of reliability and validity.

Depressive symptoms and marital satisfaction: within-subject associations and the moderating effects of gender and neuroticism.

Given the emphasis on within-subject associations between depression and marital quality in recent theory and practice, this study was undertaken with three goals: to examine within-subject associations between depressive symptoms and marital quality over time, to address gender differences in the magnitude and direction of these associations, and to determine whether neuroticism moderates the strength of these associations. A total of 164 newly wed couples provided 8 waves of data over 4 years of marriage. Hierarchical linear modeling confirmed the existence of bidirectional within-subject associations between marital satisfaction and depressive symptoms.