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- Title
The MISTELS program to measure technical skill in laparoscopic surgery : evidence for reliability.
- Authors
Vassiliou, M. C.; Ghitulescu, G. A.; Feldman, L. S.; Stanbridge, D.; Leffondré, K.; Sigman, H. H.; Fried, G. M.; Leffondré, K
- Abstract
<bold>Background: </bold>The McGill Inanimate System for Training and Evaluation of Laparoscopic Skills (MISTELS) is a series of five tasks with an objective scoring system. The purpose of this study was to estimate the interrater and test-retest reliability of the MISTELS metrics and to assess their internal consistency.<bold>Methods: </bold>To determine interrater reliability, two trained observers scored 10 subjects, either live or on tape. Test-retest reliability was assessed by having 12 subjects perform two tests, the second immediately following the first. Interrater and test-retest reliability were assessed using intraclass correlation coefficients. Internal consistency between tasks was estimated using Cronbach's alpha.<bold>Results: </bold>The interrater and test-retest reliabilities for the total scores were both excellent at 0.998 [95% confidence interval (CI), 0.985-1.00] and 0.892 (95% CI, 0.665-0.968), respectively. Cronbach's alpha for the first assessment of the test-retest was 0.86.<bold>Conclusions: </bold>The MISTELS metrics have excellent reliability, which exceeds the threshold level of 0.8 required for high-stakes evaluations. These findings support the use of MISTELS for evaluation in many different settings, including residency training programs.
- Subjects
LAPAROSCOPIC surgery; RELIABILITY (Personality trait); CLINICAL competence; SURGEONS; MEDICAL students; OPERATIVE surgery; EDUCATIONAL test &; measurement standards; COMPARATIVE studies; EDUCATIONAL tests &; measurements; LAPAROSCOPY; RESEARCH methodology; MEDICAL cooperation; RESEARCH; RESEARCH evaluation; SUTURING; TEACHING aids; TASK performance; EVALUATION research; RESEARCH bias
- Publication
Surgical Endoscopy & Other Interventional Techniques, 2006, Vol 20, Issue 5, p744
- ISSN
1866-6817
- Publication type
journal article
- DOI
10.1007/s00464-005-3008-y