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Sarah E. Peyré, EdD, Christian G. Peyré, MD, Jeffrey A. Hagen, MD, Maura E. Sullivan, PhD Department of Surgery, Keck School of Medicine University of Southern California. Reliability of a Procedural Checklist as a High Stakes Measurement of Advanced Technical Skill. Disclosure.
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Sarah E. Peyré, EdD, Christian G. Peyré, MD, Jeffrey A. Hagen, MD, Maura E. Sullivan, PhD Department of Surgery, Keck School of Medicine University of Southern California Reliability of a Procedural Checklist as a High Stakes Measurement of Advanced Technical Skill
Disclosure • 2006 SAGES Endoscopic-Laparoscopic Research Grant: Advanced Laparoscopic Skills Competency: Developing an Assessment and Feedback Evaluation Tool for Laparoscopic Nissen Fundoplication
Scientific Testing of Assessment Instruments • Validity and reliability of technical skill assessment instruments need to be measured before implementation • APA/AERA/NCME “Standards” provide rigorous, well-proven guidance on determining the validation and reliability of assessments
Measuring Technical Skill • Previous work has focused on measurement within surgical skill laboratory settings and video recordings of basic operative procedures • Psychometric Properties of Technical Skills Assessment • Validity – Instrument measures the underlying construct that it is meaning to measure • Reliability – An estimate of the dependability of a measurement device or test
Aim • To determine the reliability of a previously validated laparoscopic Nissen fundoplication procedural checklist as a measurement of advanced technical skill when using multiple raters reviewing the same operative performance
Methods • Five surgeon evaluators independently assessed video recordings of two expert surgeons performing a laparoscopic Nissen fundoplication • Inter-rater reliability was analyzed by percent agreement and Fleiss Kappa coefficient
Procedural Checklist • A task analysis and modified Delphi technique was used to develop a 65 step procedure specific checklist for laparoscopic Nissen fundoplication • Checklist was validated using a cohort of junior and senior surgical trainees • Peyre, et al. Surg Endoscopy. Epub 2008.
Fleiss Kappa Coefficient • The Fleiss (1971) Kappa produces a coefficient that is the mean probability of all the possible rater combinations
Discussion • Objective assessment and feedback on technical performance is critical for training surgeons • Current efforts focus on global rating scales and general procedural checklists • Benefits: Ease of use, requires little time, no special training • Drawbacks: Poor inter-rater reliability, lack of concrete performance feedback
Conclusions • The percent agreement and Kappa coefficients indicate a high degree of reliability (>.80) • Results support the use of checklist for high stakes assessment of a laparoscopic Nissenfundoplication • A task analysis and modified Delphi is effective in creating valid and reliable assessment tools to measure advanced surgical skill