Adaptation and Validation of the Turkish Version of the International Tinnitus Inventory

Objective: Tinnitus is a common auditory symptom that negatively affects the quality of life of individuals. This study aimed to determine the validity and reliability of a Turkish version of the International Tinnitus Inventory (Tr-ITI) for both clinical and research purposes. ITI is a short, easily applicable self-report inventory to measure perceived tinnitus. Methods: The Turkish translation of the ITI and the Tinnitus Handicap Inventory (THI) were administered to 125 participants aged 19 to 76 with tinnitus complaints for over three months. A routine audiological evaluation was performed, and the psychoacoustic properties of tinnitus were determined. Confirmatory factor analysis (CFA) was performed to construct validity, Cronbach’s alpha coefficient was used for the reliability of internal consistency, and retests were administered to participants 15 days after the first measurement. Results: CFA and inter-item correlations confirmed the unifactorial model. Tr-ITI showed high internal consistency reliability (Cronbach’s alpha =0.909). All fit index values showed a good fit. Correlations between the total scores of Tr-ITI and THI were moderate (r=-0.620) and between retest scores were very high (r=0.993). Conclusion: The Tr-ITI is a valid, reliable, and practical tool for determining tinnitus severity and tinnitus complaints.