The aim of study is to develop Turkish version of Inventory of Personality Organization. The main contribution of the present study is to provide an objective test for the Turkish clinical psychology reseachs, which could identify the personality organization level. 418 students and faculty members from İstanbul Kültür University in total participated in the current study. 280 partcipants were women (66.9%) and the rest138 participants (33%) were men. The test-retest reliability was conducted with a group of 42 university students. Principal Factor Analysis (PFA) with oblique rotation revealed a three factor solution explaining 40% of the total variance with an eigen valuıe above one regarding the participant group who has not received psychiatric treatment or psychotherapy. Regarding the PFA with oblique rotation of the clinical group, again a three factor solution was obtained explaining 48.6% of the total variance. Concurrent validity coefficients varied between -.19 and .62. According to the results of the confirmatory factor analysis using SPSS AMOS version 25, the X2/sd ratio 1.82, Goodness of fit index .901, Adjusted Goodness of fit index .875, Comparative fit index .919, Error Root Mean Square Residuals .07 and Root Mean Square Error of Approximation was found to be .044. The Cronbach Alpha internal consistency analysis coefficient results of the inventory were .77, .82 and .85 for the sub-dimensions, respectively, and it was determined as .91 for the scale total score. The inventory, which was adapted to Turkish, revealed similar results with the original form, and all the findings obtained as a result showed that the Inventory of Personality Organization is a valid and reliable inventory.

Keywords: Personality organizations, primitive defenses, identity diffusion, reality testing, Kernberg theory, KOREN