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Construct validation of a novel hybrid surgical simulator
D Broe1, P F Ridgway, S Johnson
1Department of Surgery, Professorial Surgical Unit, Level 4, The Adelaide and Meath Hospital, incorporating the National Children's Hospital, Tallaght, Dublin, 24, Ireland.
Surgical Endoscopy
|June 2, 2006
Summary
The ProMis surgical simulator effectively differentiates resident skill levels using combined virtual and actual reality tasks. Further refinement is needed for isolated task assessment in surgical training.
Area of Science:
- Surgical Education
- Medical Simulation Technology
Background:
- Surgical simulation is advancing as a tool for learning and assessment.
- The ProMis simulator offers a novel approach combining virtual and actual reality for surgical training.
Purpose of the Study:
- To describe the construct validation of the ProMis simulator.
- To assess its utility in differentiating surgical resident experience levels.
Main Methods:
- Surgical residents (novice to expert) performed three standardized tasks (orientation, dissection, suturing) on ProMis.
- Experienced surgeons evaluated recorded tasks using Objective Structured Assessment of Technical Skills (OSATS) and simulator metrics.
Main Results:
- ProMis demonstrated excellent interrater reliability for both checklist (0.88) and global ratings (0.93).
- Significant differences in scores were found between experience groups (p < 0.05).
- The orientation task alone did not reach statistical significance for assessment.
Conclusions:
- The ProMis simulator, with its combined tasks, is construct valid for assessing surgical resident experience.
- This hybrid simulator merges virtual and actual reality, offering unique training benefits.
