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The American College of Surgeons Objective Assessment of Skills in Surgery (·¬ÇÑÉçÇøapp OASIS) is a formative assessment that can be used to identify areas of strength and areas for improvement in selected technical skills of junior-level surgical trainees (PGY-2). ·¬ÇÑÉçÇøapp OASIS uses simulation-based, time-limited stations with faculty assessors to measure resident performance on a series of technical tasks essential for surgical practice. Significantly, the ·¬ÇÑÉçÇøapp OASIS results will support surgical trainees, surgical educators, and program directors in tailoring learning activities to address individual and group needs in the competency-based education and training era.

·¬ÇÑÉçÇøapp OASIS offers the following features:

• Individualized feedback regarding trainee performance at each station
• Benchmarking data for comparing residents across participating programs
• Detailed instructions for administering the assessment within surgical residency programs

·¬ÇÑÉçÇøapp OASIS includes a comprehensive set of resources: psychometrically tested rater checklists, standardized instructional videos, model instructions, objectives and stems. Furthermore, the assessment tool offers step-by-step model-building instructions with a list of required materials.

Eight Simulation Stations

• Lipoma
• Laparoscopic Appendectomy
• Laparotomy
• Laparoscopic Cholecystectomy
• Ultrasound Guided Central Line Access
• Trocar Veress Needle Insertion
• Repair of Enterotomy
• Chest Tube Placement

Assessment Psychometrics

Development and Authors

In 2017, the American College of Surgeons Division of Education formed the ·¬ÇÑÉçÇøapp Committee on Objective Assessment of Skills in Surgery, consisting of seasoned surgical educators actively involved in residency programs and community-based settings across North America. Dr. Ajit K. Sachdeva and Dr. Mohsen M. Shabahang co-chaired the committee, working with the members to conceptualize and implement ·¬ÇÑÉçÇøapp OASIS. The primary goal of the Committee was clear: to create low-cost, simulated, reproducible, and objective assessment tools for surgical trainees in selected competency domains. Committee members established to identify eight stations, focusing on the essential technical skills that junior-level residents or surgical trainees should learn and master by the end of PGY2.

The ·¬ÇÑÉçÇøapp OASIS was pre-piloted to establish feasibility and to gather information regarding implementation at two sites. Following the pre-pilot, rater checklists, model instructions, and evaluation forms were refined based on feedback from faculty assessors and surgical trainees. ·¬ÇÑÉçÇøapp OASIS was piloted from 2021-2023 at several sites. Psychometric results indicated high discrimination between low and high-performing trainees, and acceptable inter-rater and inter-station reliability.

·¬ÇÑÉçÇøapp OASIS Publication

Leadership Team

• Mohsen Shabahang, MD, PhD, F·¬ÇÑÉçÇøapp,ÌýCo-Chair
• Ajit K. Sachdeva, MD, F·¬ÇÑÉçÇøapp, FRCSC, FSACME, MAMSE,ÌýCo-Chair
• Patrice Gabler Blair, DrPH, MPH
• Gyusung I. Lee, PhD

Project Development Advisors

A team of advisors from across the country helped develop OASIS.

Enrollment

The enrollment deadline has been extended. Enrollment for the 2025 ·¬ÇÑÉçÇøapp OASIS is open from May 1–June 30, 2025.

All PGY-2s within a program must be enrolled.

Price

The cost of the 2025 ·¬ÇÑÉçÇøapp OASIS isÌý$200 per resident (completing PGY-2 in June 2025)

Due Date

The due date of the assessment data submission to ·¬ÇÑÉçÇøapp for benchmark data comparison isÌýAugust 31, 2025

Individual and program reports to participating programs are due September 30, 2025

Note: The 2025 ·¬ÇÑÉçÇøapp OASIS is intended for PGY-2 residents completing PGY-2 in June 2025. Due to the launch of the OASIS in May 2025, the timeline for the 2025 OASIS process is shifted by several months. Therefore, some PGY-2 residents may be assessed after completing the PGY-2 in June 2025. The OASIS reports from the ·¬ÇÑÉçÇøapp will be delivered to each participating residency program office by September 31, 2025. After this cycle, the 2026 OASIS will follow our regular timelines, including delivering the ·¬ÇÑÉçÇøapp OASIS reports by June 30, 2026.

Complete the form below to request more information:

Process

1. The participating program completes the enrollment application.
2. The program completes the payment.
3. The program is granted access to the ·¬ÇÑÉçÇøapp OASIS materials.
4. The program prepares the ·¬ÇÑÉçÇøapp OASIS stations by acquiring model materials and building the models. Creating models may take longer in some institutions.
5. The program conducts the assessments of its PGY-2 residents.
6. The program administrator enters the resident assessment data into the ·¬ÇÑÉçÇøapp database for benchmarking learner performance.
7. The ·¬ÇÑÉçÇøapp sends learner and program performance benchmark comparison data to the program director.

Confidential Results and Reports

Resident assessment data submission to the ·¬ÇÑÉçÇøapp will use unique participant codes with no identifiable information. Only the participating residency programs have the name-code matching table. The resident assessment data collected from multiple programs will be used to create an aggregated data set for nationwide benchmark comparison.

Following the assessments and submission of the data, program directors will receive confidential reports with data on the technical skills performance of their residents. Results list each surgical skills station, as well as the overall distribution of scores on the assessment with respect to the residency program and national benchmarks. These reports will allow program directors and each resident to recognize specific strengths and to develop learning plans to address focused areas for improvement.

Contact Us

For more information, e-mailÌýacsoasis@facs.org or call 312-202-5782.