Introduction: The shortened Hungarian 55-item version (TCI55) of the Cloninger Temperament and Character Inventory (TCI) is presented in the article. The goal of the examination was testing the psychometric parameters of the shortened questionnaire. The Cloninger TCI based by psychobiological model is the most recent personality inventory. Cloninger divides the personality to temperament dimensions into those that are determined by genetic attributes, and into the character dimensions that evolve by environment. The inventory includes four temperament factors (Novelty Seeking, Harm Avoidance, Reward Dependence, and Persistence) and tree character factors (Self- Directedness, Cooperativeness, and Self-Transcendence). The temperament dimensions characterized by automatic answers to emotional stimuli are related on the main neurotransmitters (dopamine, serotonin and norandrenalin). The character dimensions are based on the concepts of myself, others, and world, and represent the purposes, goals, and attitudes of the person.
Methods: The validation of the shortened 55-item version inventory was tested by surveys: one on a normative sample consisting 2861 persons (Rozsa, 2002), and two other samples that had been representative by sex, age, education, and habitation, and consisted 5020 and 2000 persons (HEP 2006 and HS 2013, respectively).
Results: The reliability and validity of the shortened inventory had been sufficient, the selected items represent sufficiently the original questionnaire.
Conclusion: Based on results, TCI55 is an opportunity to measure the socialbiological model of personality, when the testing of original 240-items version questionnare is not possible.