Test-retest reliability of the computerized rotational head impulse test in the pediatric population


  • Nicole Mittendorf Department of Speech-Language Pathology and Audiology, University of Pretoria, South Africa
  • Tarryn Marisca Reddy Department of Speech-Language Pathology and Audiology, University of Pretoria, South Africa
  • Barbara Heinze Ear Science Institute Australia, Western Australia
  • Alex Kiderman VP Technology Development Neurolign USA, LLC
  • Jorge González Department of Communication Sciences and Disorders, East Carolina University, North Carolina, USA




Clinical tool, Computerized head impulse test, Horizontal semi-circular canal functioning, Pediatric vestibular assessment, Vestibular test battery


Background: This study aimed to determine the test-retest reliability of the computerized rotational head impulse test (crHIT) as an additional clinical tool to assess horizontal semi-circular canal (HSCC) function in pediatric population.

Methods: To determine the test re-test reliability of the crHIT, the study included 29 normally developing children with a mean age of 12.2 years±2.7 (range: 8-17 years) with no history of vestibular symptoms and disorders. Participants underwent two crHITs within one session and one crHIT in the following session. Each crHIT included one protocol using an earth fixed target. The test-retest reliability was determined using a quantitative research approach with a repeated measures design.

Results: Mean angular vestibulo-ocular reflex (aVOR) gain of 1.01 (session 1), 1.00 (session 2), and 1.01 (session 3) were obtained. Regression analysis revealed no significant difference for leftward rotations within-session (p=0.608) and between-session (p=0.318) for the differences measured. The same was seen for rightward rotations revealing no significant difference within-session (p=0.631) and between-session (p=0.523).

Conclusions: The crHIT is a reliable clinical tool in assessing HSCC functioning in the pediatric population as it demonstrates good test-retest repeatability. The crHIT is a valuable complementary assessment to the video head impulse test (vHIT), since it is well tolerated by children, it is simple to administer and head velocities of >100°/sec are easily attainable. Extending the pediatric vestibular test battery with crHIT can be a valuable diagnostic tool without adding to the overall test time.


Author Biography

Nicole Mittendorf, Department of Speech-Language Pathology and Audiology, University of Pretoria, South Africa

Department of Speech-Language Pathology and Audiology, Master student in Audiology


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Original Research Articles