There are several congenial correlations between the nine styles of the Enneagram and the eight personality patterns proposed by Theodore Millon, Ph.D. (1969) who is an influential personality theorist, personality and clinical test developer, and a member of the task force that formulated one of the earliest versions of the Diagnostic and Statistical Manual of Mental Disorders published by the American Psychiatric Association. Since the correlations are in the direction one would expect, given the dynamics of each typology, the results provide some concurrent validity for both systems…
2012
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A Comparison of the Nine Enneagram Personality Styles and Theodore Millons’ Eight Personality Patterns (PDF)
