title: Construct, concurrent, and content validity of the eoSim laparoscopic simulator.
abstract: BACKGROUND
  The purpose of this study was to validate the eoSim box laparoscopic simulator using measures of construct, concurrent, and content validity.
  
  
  METHODS
  Forty-seven novice and expert participants were tested on both the Fundamentals of Laparoscopic Surgery (FLS™; Society of American Gastrointestinal and Endoscopic Surgeons, Los Angles, CA) and eoSim (eoSurgical™, Edinburgh, Scotland, United Kingdom) laparoscopic simulators, using established scoring mechanisms. Three skill areas were examined: object transfer, precision cutting, and intracorporeal suturing. A questionnaire was also completed.
  
  
  RESULTS
  Experts performed significantly better on the eoSim than novices, with a median score of 51.1% versus 14.8% (P<.0001), showing construct validity. There was a high correlation between performance on the validated FLS simulator and the eoSim (0.78; P<.0001), demonstrating concurrent validity. Feedback from participants indicated an agreement that the eoSim was a useful training tool providing content validity.
  
  
  CONCLUSIONS
  The eoSim demonstrates validity as a model for laparoscopic simulation. It is hoped that its decreased cost relative to other simulators will encourage increased uptake by trainees and institutions.
authors: University of Adelaide , Adelaide, South Australia, Australia .
authors: Iain A M
authors: IA
authors: Hennessey
authors: Peter
authors: P
authors: Hewett
mesh_terms: D000293:Adolescent; D000328:Adult; D001291:Attitude of Health Personnel; D002983:Clinical Competence; D003198:Computer Simulation; D005260:Female; D006801:Humans; D010535:Laparoscopy / Q000193:education* / Q000295:instrumentation; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D014584:User-Computer Interface; D055815:Young Adult