Abstract
Objective: To compare the performance of medical students in open-book tests composed of open-ended questions (OBTOEQ), describing variables related to planning, execution, test duration, response type, and the cognitive domain of the questions. Methods: This retrospective observational study compared student performance in OBTOEQ administered without supervision (2023.1) and with supervision and restricted access to information sources (2024.1) in a medical course at a private Brazilian institution. The following exploratory variables were considered: time available to complete the tests, type of response, and cognitive domain of the questions according to Bloom’s Taxonomy. Statistical analysis was performed using SPSS 26.0 and Excel 365, adopting a significance level of 5% (p ≤ 0.05). The Mann-Whitney test was used to compare the groups. Results: A total of 1,160 OBTOEQ-2023 and 1,146 OBTOEQ-2024 were analyzed. Most supervised tests showed lower mean scores (p < 0.05), despite the longer test duration and the predominance of lower cognitive domains. Long-answer responses predominated in the supervised OBTOEQ. Conclusion: Differences in performance were observed between the assessment contexts, indicating that the application conditions influence the interpretation of results and the reliability of students’ individual performance.
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