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  • Title: Development and Validation of Quadri Condition Dichotic Double Word Test in Kannada.
    Author: Dsouza SC, Jyotsna CS, Rohith K, Yashu MA, Bhat M.
    Journal: Audiol Neurootol; 2024 Sep 27; ():1-7. PubMed ID: 39342929.
    Abstract:
    INTRODUCTION: Dichotic listening (DL) is a test where auditory stimuli are presented simultaneously to each ear. DL has clinical applications in assessing APD, schizophrenia, and brain injury. It is sensitive to hemisphere differences and has been used to study language lateralization. The study aimed to develop, validate, and establish norms for a Quadri condition Dichotic Double Word Test (free recall, forced right, forced left, and switch attention) in the Kannada language (DDWT-K). METHODS: This study was carried out in two phases. Phase 1 aimed to develop and validate the DDWT-K and phase 2 involved data collection. The developed novel dichotic test was administered on 100 normal-hearing adults in four conditions - free recall, forced right, forced left, and switch attention. RESULTS: The results showed significant ear differences in free recall condition indicating right ear advantage. The switch attention condition showed slightly poorer performance when compared to both the forced attention condition indicating greater task difficulty. The test-retest reliability was above 0.7 for all the conditions indicating good reliability. CONCLUSIONS: The findings demonstrated the best preservation of the original dichotic effects and hence ready for clinical use.
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