Palabras clave: Test basado en la confianza; Evaluación; Validez; Fiabilidad; Aprendizaje; Estudiante universitario; Grado de seguridad. Test-type exams based on the student's confidence (CBT) are scarcely used in the Spanish academic environment. This evaluation system emphasizes both the student's knowledge and the level of confidences he or she has of that knowledge. The results obtained in CBT were analyzed. The study was conducted in a school of Nursing and Physiotherapy during the

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... years covered from 2009 to 2014. The validity and reliability of the CBT were compared to those obtained with a traditional correct-response grading system. Students acquired dexterity with the new scoring procedure quickly, choosing the most appropriate option for confidence level that was in accordance with their level of knowledge in a rational way. The validity of the correction system was higher in the CBT compared to the traditional test system, with a statistically significant difference. Reliability was analyzed in five groups of students using the Cronbach α coefficient, with four of them having higher reliability with the CBT as compared to the traditional grading system and the fifth having the same level of reliability for the two types of tests. Confidence based testing has shown to be a procedure that provides advantages over the traditional test. CBT provides more information to the teacher, students adapt to it quickly and it has greater validity and at least equal reliability to the traditional grading system.