Riso–Hudson Enneagram Type Indicator
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. Their research focused on c...
Enneagram of Personality
The Enneagram of Personality, or simply the Enneagram (from the Greek words ἐννέα [ennea, meaning "nine"] and γράμμα [gramma, meaning something "written" or "drawn"]), is a model of human personality ...
Tritype
The term Tritype refers to a theory regarding the Enneagram of Personality and was coined by Enneagram researcher and coach Katherine Chernick Fauvre. The word tritype was formed from Latin, with the...