Table of Contents Author Guidelines Submit a Manuscript
BioMed Research International
Volume 2014, Article ID 192741, 8 pages
Research Article

The Construct Validity and Reliability of an Assessment Tool for Competency in Cochlear Implant Surgery

1Department of Otolaryngology, Royal Victorian Eye and Ear Hospital, University of Melbourne, East Melbourne, VIC 3002, Australia
2Department of Otorhinolaryngology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
3Centre for the Study of Higher Education, University of Melbourne, Parkville, VIC 3052, Australia

Received 4 February 2014; Accepted 26 June 2014; Published 10 July 2014

Academic Editor: Claus-Peter Richter

Copyright © 2014 Patorn Piromchai et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Introduction. We introduce a rating tool that objectively evaluates the skills of surgical trainees performing cochlear implant surgery. Methods. Seven residents and seven experts performed cochlear implant surgery sessions from mastoidectomy to cochleostomy on a standardized virtual reality temporal bone. A total of twenty-eight assessment videos were recorded and two consultant otolaryngologists evaluated the performance of each participant using these videos. Results. Interrater reliability was calculated using the intraclass correlation coefficient for both the global and checklist components of the assessment instrument. The overall agreement was high. The construct validity of this instrument was strongly supported by the significantly higher scores in the expert group for both components. Conclusion. Our results indicate that the proposed assessment tool for cochlear implant surgery is reliable, accurate, and easy to use. This instrument can thus be used to provide objective feedback on overall and task-specific competency in cochlear implantation.