Development and validation of dichotic double digit test in Kannada
Mayur Bhat1, Hari Prakash Palaniswamy1, Smruthi Venkat1
1Dept of Speech and Hearing Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, India.
International Journal of Pediatric Otorhinolaryngology
|November 6, 2020
Summary
This study developed a Kannada dichotic digit test for adults and children. The test accurately identifies a right ear advantage in free recall, aiding auditory processing assessments.
Area of Science:
- Audiology
- Neuroscience
- Speech and Language Pathology
Background:
- Dichotic listening tests are crucial for assessing auditory processing and hemispheric function.
- Standardized tests are needed for diverse linguistic populations, including Kannada speakers.
- Previous dichotic tests may lack specific validation or normative data for the Kannada language.
Purpose of the Study:
- To develop and validate a double dichotic digit test (DDDT) in Kannada.
- To establish normative data for the Kannada DDDT in both adults and children.
- To evaluate the test's ability to identify the right ear advantage (REA) in free and forced recall conditions.
Main Methods:
- Phase 1: Development of dichotic digit test materials in Kannada.
- Phase 2: Validation and normative data collection from 70 adults (18-60 years) and 50 children (10-15 years).
- Testing conducted under both free recall and forced attention conditions.
Main Results:
- No significant differences in scores across three test lists in free recall (p=0.189).
- Significant right ear advantage observed across all lists in free recall (p=0.001).
- No significant difference between right and left ear scores in forced recall.
Conclusions:
- A content-validated Kannada double dichotic digit test with normative data has been established.
- The test accurately evaluates the right ear advantage.
- This tool is valuable for audiological and neurological assessments in Kannada speakers.
