Correlación de competencias evaluadas en una evaluación clínica objetiva estructurada, un test de opción múltiple y un examen de casos clínicos por ordenador en estudiantes de último curso de Medicina
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Abstract
Background: Final-year medical students are required to complete a summative assessment through an OSCE (Objective Structured Clinical Examination). In some faculties, as an adaptation during the pandemic, a computer-based Cases Test (CCT) was introduced. This test was intended to assess competencies similar to those evaluated in the OSCE and is weighted as part of the final grade alongside the OSCE. In 2023, we compared an OSCE, a CCT, and a multiple-choice question (MCQ) exam, with the aim of analysing the concordance of overall and competency-specific results. Our hypothesis was that the CCT assesses a construct more closely related to the MCQ than to the OSCE. Methods: A total of 108 students participated. They completed a 21-station OSCE, a CCT consisting of 10 computer-based clinical cases, and a 150-question MCQ exam based on 26 clinical scenarios aligned with the other two assessments. Five shared competencies were evaluated: history taking, physical examination, clinical reasoning, prevention/promotion, and professionalism. Internal consistency was analysed using Cronbach's alpha, and correlations between assessments were calculated using Spearman's rho coefficient. Results: Scores were lowest in the MCQ. The OSCE and CCT coincided only in overall scores, not by individual competencies. The strongest correlation was observed between the MCQ and CCT (rho = 0.49), and the weakest between the OSCE and CCT (rho = 0.27). Significant correlations were found only in clinical reasoning and physical examination between the MCQ and the other assessments. The OSCE showed the highest internal consistency (α = 0.754). Conclusion: The three assessments evaluate different dimensions. The CCT measures a construct more closely aligned with the MCQ. Competencies assessed by the OSCE and the CCT do not correlate.


