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Development and Validation of the Spatial Separation Sentence Test in Kannada
Asish Mervin Hermon1, Kanaka Ganapathy1, Hari Prakash Palaniswamy1
1Department of Speech and Hearing, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, Karnataka, India.
Journal of Audiology & Otology
|April 30, 2024
Summary
This study developed a new Speech in Noise Sentence Test for Kannada-speaking children. The validated test accurately measures speech comprehension, especially with spatial separation of sound.
Area of Science:
- Audiology
- Speech-Language Pathology
- Pediatric Hearing
Background:
- Assessing speech comprehension in noise is crucial for children.
- Existing tests may not be suitable for all linguistic and cultural groups.
- Kannada-speaking children require a culturally and linguistically appropriate tool.
Purpose of the Study:
- To develop and validate a modified Speech in Noise Sentence Test in Kannada.
- To create a reliable tool for assessing speech comprehension in children aged 8-12 years.
- To evaluate the impact of spatial separation on speech understanding.
Main Methods:
- Developed a Kannada Speech in Noise Sentence Test using 120 familiar sentences across four lists.
- Utilized continuous discourse as a distractor presented at varying spatial locations (+90°, -90° azimuth).
- Employed a dynamic signal-to-noise ratio (SNR) adjustment and pilot tested with 60 children (8-12 years).
Main Results:
- Significant improvement in SNR50 scores observed with spatial separation of target and distractor stimuli.
- Age demonstrated a significant effect on spatial separation scores.
- Excellent test-retest reliability was established for the developed test.
Conclusions:
- The developed Kannada Speech in Noise Sentence Test effectively measures spatial separation abilities.
- Normative and psychometric analyses confirmed the reliability and validity of the test.
- This tool provides a reliable method for assessing speech comprehension in pediatric populations.
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