Riso–Hudson Enneagram Type Indicator

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The Riso–Hudson Enneagram Type Indicator (RHETI) is an Enneagram of Personality psychometric test. Don Richard Riso and Russ Hudson began developing the RHETI test in 1993.[citation needed] Their research focused on constructing the RHETI as a personality measurement instrument.

The latest version consists of 144 pairs of forced-choice statements.

The RHETI has been found to be of heuristic value[1] but minimal scientific research has been conducted.[2]


  1. ^ Newgent, Rebeca, Rebeca (January 2004), "The Riso-Hudson Enneagram Type Indicator: Estimates of Reliability and Validity" (PDF), Measurement and Evaluation in Counseling and Development, 36, pp. 226–237, retrieved December 23, 2010 
  2. ^ Giordano, Mary Ann Elizabeth; Piedmont, Ralph (Jan 2010). "A psychometric evaluation of the Riso-Hudson Type Indicator (RHETI), Version 2.5: Comparison of ipsative and non-ipsative versions and correlations with spiritual outcomes". ProQuest Dissertations and Theses. Baltimore, MD: Loyola College In Maryland. DAI-B 70/07: 4524. Retrieved December 27, 2010.