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Assessment of construct validity of the endoscopic sinus surgery simulator.
Arch Otolaryngol Head Neck Surg. 2005 Mar; 131(3):217-21.AO

Abstract

OBJECTIVE

To study the relationship between performance on an endoscopic sinus surgery simulator (ES3) and fundamental perceptual, visuospatial, and psychomotor abilities.

DESIGN

Validation study.

SETTING

Tertiary care medical center.

PARTICIPANTS

Thirty-four medical students and 4 otolaryngology residents voluntarily enrolled.

INTERVENTIONS

Subjects performed tasks on the ES3, minimally invasive surgical trainer virtual reality (MIST-VR), pictorial surface orientation (PicSOr), and 3 visuospatial tests (cube comparison, card rotation, and map planning).

MAIN OUTCOME MEASURES

The MIST-VR was scored for time, task error, economy of hand movement, economy of diathermy, and total score. Scores were generated for the PicSOr task and visuospatial tests. Scores were correlated with time, accuracy, and total subscore on navigation, injection, and dissection tasks, as well as hazard score and total trial score on the ES3.

RESULTS

The PicSOr score was statistically significantly correlated with the hazard score on the ES3 (r = 0.50, P < .001). Cube comparison (r = 0.43, P < .01) and card rotation (r = 0.45, P < .01) scores correlated significantly with the ES3 trial score, as did the MIST-VR total score and the ES3 trial score (r = 0.57, P < .001). In a multiple regression model, the PicSOr, cube comparison, and MIST-VR total scores were statistically significant predictors of ES3 performance (r = 0.63, P < .01).

CONCLUSIONS

Scores on the ES3 correlate strongly with scores on previously validated measures of perceptual, visuospatial, and psychomotor performance. The ES3 provides a reliable assessment of factors that are important to the acquisition of minimally invasive surgical skills, demonstrating construct validity.

Authors+Show Affiliations

Arora H
Department of Medicine, Long Island Jewish Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA.
Uribe J
No affiliation info available
Ralph W
No affiliation info available
Zeltsan M
No affiliation info available
Cuellar H
No affiliation info available
Gallagher A
No affiliation info available
Fried MP
No affiliation info available

MeSH

Computer SimulationEducational MeasurementEducational TechnologyEndoscopyFemaleHumansInternship and ResidencyMaleMultivariate AnalysisParanasal SinusesProbabilityRegression AnalysisSensitivity and SpecificityStudents, MedicalTask Performance and AnalysisUser-Computer Interface

Pub Type(s)

Comparative Study
Journal Article
Research Support, U.S. Gov't, P.H.S.
Validation Study

Language

eng

PubMed ID

15781761

Citation

Arora, Harman, et al. "Assessment of Construct Validity of the Endoscopic Sinus Surgery Simulator." Archives of Otolaryngology--head & Neck Surgery, vol. 131, no. 3, 2005, pp. 217-21.
Arora H, Uribe J, Ralph W, et al. Assessment of construct validity of the endoscopic sinus surgery simulator. Arch Otolaryngol Head Neck Surg. 2005;131(3):217-21.
Arora, H., Uribe, J., Ralph, W., Zeltsan, M., Cuellar, H., Gallagher, A., & Fried, M. P. (2005). Assessment of construct validity of the endoscopic sinus surgery simulator. Archives of Otolaryngology--head & Neck Surgery, 131(3), 217-21.
Arora H, et al. Assessment of Construct Validity of the Endoscopic Sinus Surgery Simulator. Arch Otolaryngol Head Neck Surg. 2005;131(3):217-21. PubMed PMID: 15781761.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Assessment of construct validity of the endoscopic sinus surgery simulator. AU - Arora,Harman, AU - Uribe,Jose, AU - Ralph,Walter, AU - Zeltsan,Michael, AU - Cuellar,Hernando, AU - Gallagher,Anthony, AU - Fried,Marvin P, PY - 2005/3/23/pubmed PY - 2005/4/7/medline PY - 2005/3/23/entrez SP - 217 EP - 21 JF - Archives of otolaryngology--head & neck surgery JO - Arch Otolaryngol Head Neck Surg VL - 131 IS - 3 N2 - OBJECTIVE: To study the relationship between performance on an endoscopic sinus surgery simulator (ES3) and fundamental perceptual, visuospatial, and psychomotor abilities. DESIGN: Validation study. SETTING: Tertiary care medical center. PARTICIPANTS: Thirty-four medical students and 4 otolaryngology residents voluntarily enrolled. INTERVENTIONS: Subjects performed tasks on the ES3, minimally invasive surgical trainer virtual reality (MIST-VR), pictorial surface orientation (PicSOr), and 3 visuospatial tests (cube comparison, card rotation, and map planning). MAIN OUTCOME MEASURES: The MIST-VR was scored for time, task error, economy of hand movement, economy of diathermy, and total score. Scores were generated for the PicSOr task and visuospatial tests. Scores were correlated with time, accuracy, and total subscore on navigation, injection, and dissection tasks, as well as hazard score and total trial score on the ES3. RESULTS: The PicSOr score was statistically significantly correlated with the hazard score on the ES3 (r = 0.50, P < .001). Cube comparison (r = 0.43, P < .01) and card rotation (r = 0.45, P < .01) scores correlated significantly with the ES3 trial score, as did the MIST-VR total score and the ES3 trial score (r = 0.57, P < .001). In a multiple regression model, the PicSOr, cube comparison, and MIST-VR total scores were statistically significant predictors of ES3 performance (r = 0.63, P < .01). CONCLUSIONS: Scores on the ES3 correlate strongly with scores on previously validated measures of perceptual, visuospatial, and psychomotor performance. The ES3 provides a reliable assessment of factors that are important to the acquisition of minimally invasive surgical skills, demonstrating construct validity. SN - 0886-4470 UR - https://www.unboundmedicine.com/medline/citation/15781761/Assessment_of_construct_validity_of_the_endoscopic_sinus_surgery_simulator_ DB - PRIME DP - Unbound Medicine ER -