Construct Validity of the Avian Model for Neonatal Laparoscopic Surgery Training

Purpose: To validate the construct validity of the avian model, a cost-effective and realistic simulator using chicken cadavers for neonatal laparoscopic surgery training. Methods: Thirteen participants with varying experience levels (novices, residents, and seniors) performed laparoscopic suturing tasks on the avian model during a pediatric MIS course in Geneva. Performance was evaluated using a modified OSATS framework (specific and general scores). Results: The avian model significantly distinguished between skill levels: specific ( P =0.024) and general ( P =0.016) scores improved with experience. Execution time decreased accordingly ( P =0.019). Interobserver agreement was high (κ=0.87, κ=0.84). Seniors outperformed novices and residents in all metrics. Conclusion: The avian model demonstrates strong construct validity and is effective in differentiating surgical skill levels. It offers a reliable, reproducible platform for pediatric laparoscopic training.