Examinando por Autor "Ochoa, J.L.R."

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    Ítem
    Items' difficulty level determination based on a Statics test with parameters variation
    (Institute of Electrical and Electronics Engineers Inc., 2015-01-01) Cadavid, A.R.; Ochoa, J.L.R.; Pérez, J.L.B.; Universidad EAFIT. Departamento de Ingeniería Mecánica; Estudios en Mantenimiento (GEMI)
    Looking for the improvement of the students' learning, the engineering school of EAFIT University is currently developing an evaluation and training system. In this system, each student has the option of doing 'dynamic' exercises in a specific field of a subject. Whenever a student uses the system, an exercise is generated with different parameters and values. The mentioned system (Evaluation System) has been used in the last semesters, achieving the improvement in the students' comprehension and learning level of the Statics subject. The system under development, allows the students to train themselves in different topics of the subject and, at the same time, it allows the teachers to evaluate the learning process. Based on the fact that in the course assessments, an exam with different parameters and values is presented every time a student accesses the system, it is possible that some students present tests with different complexity levels. Therefore, the test could be considered inequitable for some people. This paper presents an analysis of the difficulty level of a test generated with the system. The test was applied to two different groups of students which are taking the course in the 2014-1 semester. The first group took a test where the items' values and parameters were not changed; and the second one, took a test where the items' values and parameters change for each student. Based on the obtained results, a statistical study is made which intends to determine the difficulty and discrimination level of each of the test items, both for the dynamics parameters test and the fixed parameters test in order to finally determine how much varies the items' difficulty due to the parameters variation. This will help to generate more equitable tests in the future for the assessment of a group of students that are taking the course. © 2014 IEEE.
  • No hay miniatura disponible
    Ítem
    Items' difficulty level determination based on a Statics test with parameters variation
    (Institute of Electrical and Electronics Engineers Inc., 2015-01-01) Cadavid, A.R.; Ochoa, J.L.R.; Pérez, J.L.B.; Cadavid, A.R.; Ochoa, J.L.R.; Pérez, J.L.B.; Universidad EAFIT. Departamento de Ingeniería Mecánica; Mecatrónica y Diseño de Máquinas
    Looking for the improvement of the students' learning, the engineering school of EAFIT University is currently developing an evaluation and training system. In this system, each student has the option of doing 'dynamic' exercises in a specific field of a subject. Whenever a student uses the system, an exercise is generated with different parameters and values. The mentioned system (Evaluation System) has been used in the last semesters, achieving the improvement in the students' comprehension and learning level of the Statics subject. The system under development, allows the students to train themselves in different topics of the subject and, at the same time, it allows the teachers to evaluate the learning process. Based on the fact that in the course assessments, an exam with different parameters and values is presented every time a student accesses the system, it is possible that some students present tests with different complexity levels. Therefore, the test could be considered inequitable for some people. This paper presents an analysis of the difficulty level of a test generated with the system. The test was applied to two different groups of students which are taking the course in the 2014-1 semester. The first group took a test where the items' values and parameters were not changed; and the second one, took a test where the items' values and parameters change for each student. Based on the obtained results, a statistical study is made which intends to determine the difficulty and discrimination level of each of the test items, both for the dynamics parameters test and the fixed parameters test in order to finally determine how much varies the items' difficulty due to the parameters variation. This will help to generate more equitable tests in the future for the assessment of a group of students that are taking the course. © 2014 IEEE.
  • No hay miniatura disponible
    Ítem
    Student acceptance and performance of a virtual platform for training and evaluation of Statics course
    (Institute of Electrical and Electronics Engineers Inc., 2016-11-28) Ochoa, J.L.R.; Pérez, J.L.B.; Berrio, J.A.; Universidad EAFIT. Departamento de Ingeniería Mecánica; Estudios en Mantenimiento (GEMI)
    Due to the poor performance of students in the Statics course in engineering between 2006 and 2011, whose approval rating was 48.8%, the Engineering School of EAFIT University has developed a virtual platform for students to train and for teachers to evaluate the learning of the subject with a series of exercises implemented in a dynamic system that generates a different version of the exercises for each attempt, the teacher can apply exams with confidence that the answers will not be copied and memorized, and the students have a self-evaluating tool which allows to know their level of learning in relation to the course goals. With the operation of the platform it has been achieved a decrease in dropout rates, and an increase in the approvals rates of the course and it has also generated a positive attitude and motivation in students towards the course. The dropouts have decreased by 21% and the approval of the course has increased by 17.2% according to official records in enrollment and students grades of the course for the period between 2011-2 and 2015-2. Regarding to the acceptance of the platform a survey of 10 questions were conducted on different aspects of the platform to 513 students who completed the course during the semesters 2014-2, 2015-1 and 2015-2. In the literature, there are cases of implementation of virtual environments for teaching and evaluation of Statics course in engineering, but studies on the acceptance of virtual tools from students for their classes are not included, and that is the reason why this approach is included in this article. To analyze the data two types of questions are distinguished: discriminative and approving questions. The discriminative type filters the students under what career they are enrolled, the number of semesters they spend to approve the Statics course, the number of hours per week they dedicate to study this course, the preferences and places from where they access to the virtual platform. The approving questions inquire about their experience in the training process, their adaptation taking the quizzes in the platform and their opinion about the implementation of this kind of tool in other courses. This paper presents the analysis of the collected data and draws conclusions in order to improve this platform for teaching and learning process in Statics course in engineering. © 2016 IEEE.
  • No hay miniatura disponible
    Ítem
    Student acceptance and performance of a virtual platform for training and evaluation of Statics course
    (Institute of Electrical and Electronics Engineers Inc., 2016-11-28) Ochoa, J.L.R.; Pérez, J.L.B.; Berrio, J.A.; Ochoa, J.L.R.; Pérez, J.L.B.; Berrio, J.A.; Universidad EAFIT. Departamento de Ingeniería Mecánica; Mecatrónica y Diseño de Máquinas
    Due to the poor performance of students in the Statics course in engineering between 2006 and 2011, whose approval rating was 48.8%, the Engineering School of EAFIT University has developed a virtual platform for students to train and for teachers to evaluate the learning of the subject with a series of exercises implemented in a dynamic system that generates a different version of the exercises for each attempt, the teacher can apply exams with confidence that the answers will not be copied and memorized, and the students have a self-evaluating tool which allows to know their level of learning in relation to the course goals. With the operation of the platform it has been achieved a decrease in dropout rates, and an increase in the approvals rates of the course and it has also generated a positive attitude and motivation in students towards the course. The dropouts have decreased by 21% and the approval of the course has increased by 17.2% according to official records in enrollment and students grades of the course for the period between 2011-2 and 2015-2. Regarding to the acceptance of the platform a survey of 10 questions were conducted on different aspects of the platform to 513 students who completed the course during the semesters 2014-2, 2015-1 and 2015-2. In the literature, there are cases of implementation of virtual environments for teaching and evaluation of Statics course in engineering, but studies on the acceptance of virtual tools from students for their classes are not included, and that is the reason why this approach is included in this article. To analyze the data two types of questions are distinguished: discriminative and approving questions. The discriminative type filters the students under what career they are enrolled, the number of semesters they spend to approve the Statics course, the number of hours per week they dedicate to study this course, the preferences and places from where they access to the virtual platform. The approving questions inquire about their experience in the training process, their adaptation taking the quizzes in the platform and their opinion about the implementation of this kind of tool in other courses. This paper presents the analysis of the collected data and draws conclusions in order to improve this platform for teaching and learning process in Statics course in engineering. © 2016 IEEE.