{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T02:29:14Z","timestamp":1760149754031,"version":"build-2065373602"},"reference-count":22,"publisher":"MDPI AG","issue":"18","license":[{"start":{"date-parts":[[2023,9,5]],"date-time":"2023-09-05T00:00:00Z","timestamp":1693872000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Ministry of Education Korea","award":["#2022R1A6A3A01086146"],"award-info":[{"award-number":["#2022R1A6A3A01086146"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Tinnitus is the perception of abnormal sounds in the ears or head without external auditory stimulation. While classical test theory is often used in tinnitus questionnaire development, it has limitations in assessing item characteristics. Item response theory (IRT) offers more precise individual ability estimations and identifies key and less important items, making it superior for reliable measurement tools. This study investigated the suitability of the Korean version of the Tinnitus Handicap Inventory (K-THI) as a patient-reported outcome measure (PROM) for clinical trials. Using Rasch analysis based on IRT, we evaluated K-THI\u2019s measurement of tinnitus-related disability in 545 patients (40.4% men, 59.6% women). Five items (2, 7, 8, 19, and 24) did not fit the Rasch model, yet a unidimensional scale and good fit for person and item data emerged (person: 0.89; item: 0.98). The three-point rating scale in K-THI proved suitable. IRT allowed precise evaluation of K-THI\u2019s properties, vital for reliable PROMs in patient-centered care. Our findings highlight IRT\u2019s role in questionnaire development, contributing to the advancement of PROMs.<\/jats:p>","DOI":"10.3390\/jcm12185785","type":"journal-article","created":{"date-parts":[[2023,9,5]],"date-time":"2023-09-05T10:26:43Z","timestamp":1693909603000},"page":"5785","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Rasch Analysis of the Korean Version of the Tinnitus Handicap Inventory"],"prefix":"10.3390","volume":"12","author":[{"given":"Ga-Young","family":"Kim","sequence":"first","affiliation":[{"name":"Hearing Research Laboratory, Samsung Medical Center, Seoul 06351, Republic of Korea"},{"name":"Medical Research Institute, Sungkyunkwan University School of Medicine, Suwon 16419, Republic of Korea"},{"name":"Department of Digital Health, Samsung Advanced Institute for Health Sciences & Technology, Sungkyunkwan University, Seoul 06355, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Young Sang","family":"Cho","sequence":"additional","affiliation":[{"name":"Hearing Research Laboratory, Samsung Medical Center, Seoul 06351, Republic of Korea"},{"name":"Department of Otorhinolaryngology-Head and Neck Surgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul 06351, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ji Hyun","family":"An","sequence":"additional","affiliation":[{"name":"Department of Psychiatry, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul 06351, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jung-Wan","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Speech and Language Pathology, College of Rehabilitation Sciences, Daegu University, Gyeongsan 38453, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Il Joon","family":"Moon","sequence":"additional","affiliation":[{"name":"Hearing Research Laboratory, Samsung Medical Center, Seoul 06351, Republic of Korea"},{"name":"Department of Otorhinolaryngology-Head and Neck Surgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul 06351, Republic of Korea"},{"name":"Samsung Advanced Institute for Health Sciences & Technology, Sungkyunkwan University, Seoul 06355, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,9,5]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"959","DOI":"10.1001\/jamaoto.2016.1700","article-title":"Prevalence, Severity, Exposures, and Treatment Patterns of Tinnitus in the United States","volume":"142","author":"Bhatt","year":"2016","journal-title":"JAMA Otolaryngol. 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