ANALYZING THE QUALITY OF OBJECTIVE STRUCTURED CLINICAL EXAMINATION IN TEHRAN UNIVERSITY OF MEDICAL SCIENCES

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MORTAZHEJRI SARA; JALILI MOHAMMAD

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: Iranian Journal of Medical Education Year:2017 | Volume:17 | Issue:79 Page(s): 50-59

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Information Journal Paper

Title

ANALYZING THE QUALITY OF OBJECTIVE STRUCTURED CLINICAL EXAMINATION IN TEHRAN UNIVERSITY OF MEDICAL SCIENCES

Author(s)

MORTAZHEJRI SARA | JALILI MOHAMMAD | Issue Writer Certificate

Keywords

TEST ANALYSISQ1

PSYCHOMETRICSQ1

OBJECTIVE STRUCTURED CLINICAL EXAMINATIONQ1

Abstract

Introduction: With the increasing popularity of performance-based assessments, it is necessary to employ proper indicators to ensure their quality. The present study examines the metrics of OBJECTIVE STRUCTURED CLINICAL EXAMINATION (OSCE).Methods: In this descriptive, cross-sectional research in 10 pre-internship OSCE stations of Tehran University of Medical Sciences in 2012, the cut-off score was determined by borderline regression method and the failure rate was calculated. Root Mean Square Error (RMSE) was used to estimate error rate threshold. Internal consistency was calculated using Cronbach’s alpha and then, the Standard Error of Measurement (SEM) was determined. Alpha if item deleted, R2 coefficient, intergrade discrimination, difficulty and discrimination indices were calculated for each station. A total of 266 students participated in this exam.Results: A total of 266 students participated in this exam. The OSCE total cut-off score was 52.55 (out of 100). Four students (1.5%) failed the exam and the RMSE equaled 0.45. SEM was 4.84 and Cronbach’s alpha was calculated at 0.70 where the alpha if item deleted scores varied from 0.64 to 0.70. The R2 coefficient ranged from 0.16 to 0.85 and the intergrade discrimination ranged between 0.66 and 1.93. The ranges of difficulty and discrimination indices were 0.71-0.89 and 0.12-0.44 respectively.Conclusion: The internal consistency, SEM and threshold error rate were all acceptable. The alpha if item deleted was in the acceptable range in all stations. In two stations, the R2 value was lower than the desired range. The intergrade discrimination value was appropriate in all stations except one. The stations were not too difficult or highly discriminative which is considered favorable in criterion-referenced exams.

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APA: Copy

MORTAZHEJRI, SARA, & JALILI, MOHAMMAD. (2017). ANALYZING THE QUALITY OF OBJECTIVE STRUCTURED CLINICAL EXAMINATION IN TEHRAN UNIVERSITY OF MEDICAL SCIENCES. IRANIAN JOURNAL OF MEDICAL EDUCATION, 17(79), 50-59. SID. https://sid.ir/paper/59264/en

Vancouver: Copy

MORTAZHEJRI SARA, JALILI MOHAMMAD. ANALYZING THE QUALITY OF OBJECTIVE STRUCTURED CLINICAL EXAMINATION IN TEHRAN UNIVERSITY OF MEDICAL SCIENCES. IRANIAN JOURNAL OF MEDICAL EDUCATION[Internet]. 2017;17(79):50-59. Available from: https://sid.ir/paper/59264/en

IEEE: Copy

SARA MORTAZHEJRI, and MOHAMMAD JALILI, “ANALYZING THE QUALITY OF OBJECTIVE STRUCTURED CLINICAL EXAMINATION IN TEHRAN UNIVERSITY OF MEDICAL SCIENCES,” IRANIAN JOURNAL OF MEDICAL EDUCATION, vol. 17, no. 79, pp. 50–59, 2017, [Online]. Available: https://sid.ir/paper/59264/en

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