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Türkiye-Anatolia screening and diagnostic tests for auditory processing disorder: A normative data study in young adults

Year: 2026
Type: article
Abstract: Aim: Central auditory processing disorder (CAPD) is an impairment in the processing of auditory information throughout the central auditory system, and it affects the everyday functioning and academic performance of affected individuals. Early identification and management of CAPD are therefore critically important. The aim of this study was to develop CAPD screening and diagnostic tests for native speakers of Turkish and to obtain normative data in healthy adults. Methods: The Türkiye-Anatolia Central Auditory Processing Disorder Diagnosis and Screening Tests (T-Anatolia CAPDT), comprising screening and diagnostic tests for CAPD, were developed and administered to 90 healthy individuals (45 females, 45 males). The T-Anatolia CAPDT consists of two nonverbal tests, the Bilateral Frequency Tone Pattern Test (BFTPT) and the Dichotic Frequency Tone Pattern Test (DFTPT), and five tests employing verbal stimuli: the Auditory Figure-Ground Test (AFGT), the Dichotic Sentence Test (DST), the Dichotic Word Test (DWT), the Filtered Word Test (FWT), and the Dichotic Monosyllabic Competing Test (DMCT). Differences in test performance between the right and left ears and between sexes were examined. Exploratory factor analysis was performed, and the intercorrelations and reliability of the tests were analyzed. Results: Exploratory factor analysis (EFA) of the T-Anatolia CAPDT yielded a six-factor structure with eigenvalues above 1.00, accounting for 74.69% of the total variance. All tests examined showed statistically significant reliability and agreement (p < .05). Significant correlations were found within and between the tests (p < .05). Conclusion: The T-Anatolia CAPDT is a battery capable of assessing central auditory processing in a multidimensional and functional manner. The normative data obtained may serve as a reference in the diagnosis and management of CAPD, and may support the screening and early identification of the disorder as well as the effective planning of treatment.
DOI: 10.63909/1453056
Language: English
Open Access status: hybrid
OpenAlex ID: W7214937348
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