Morteza Ghojazadeh
1, Soleiman Ahmadi
2, Mohammad Ali Hosseini
3, Shahram Shahabi
4, Taraneh Tahamtani
5, Farshid Nourbakhsh
6, Hassan Niknejhad
7, Shahram Seyyedi
4, Negar Azarpira
8, Jamshid hajati
9, Manouchehr Khoshbaten
10, Moslem Najafi
11, Behzad Baradaran
12, Saber Azami-Aghdash
13*1 Associate Professor, Department of Physiology, Liver and Gastrointestinal Disease Research Center, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
2 Associate Professor, Department of Medical Education, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
3 Associate Professor, Department of Rehabilitation Management, School of Medicine, University of Welfare and Rehabilitation Sciences, Tehran, Iran
4 Associate Professor, Department of Immunology, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
5 Student, Department of Medical Education, Alborz University of Medical Sciences, Tehran, Iran
6 Assistant Professor, Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
7 Associate Professor, Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
8 Associate Professor, Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
9 Professor, Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
10 Professor, Department of Gastrointestinal Diseases, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
11 Associate Professor, Department of Pharmacology, School of Pharmacology, Tabriz University of Medical Sciences, Tabriz, Iran
12 Assistant Professor, Department of Immunology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
13 PhD Student, Health Management and Economics Research Center, Iran University of Medical Sciences, Tehran, Iran
Abstract
Introduction: Regarding to the importance of students Olympiads, and the need for evaluation of quality of questions, the aim of this study was to analyze questions (indices of difficulty coefficient and discrimination coefficient) of Fourth Olympiad examination among Iranian medical sciences students in the area of scientific thinking in basic science. Methods: This study was descriptive-analytical study and was conducted in 2013 in the Tabriz University of Medical Sciences (Tabriz, Iran). The individual phase of this period, comprised from four phase and six parts included: designing conceptual map (CM) (three part designing CM, summarizing CM, and designing three questions), hypothesis generating, selecting variables, and analyzing the findings. Data analyzed using descriptive statistics and statistical tests in SPSS for Windows. Results: According to difficulty coefficient of selecting variable (82%) and making hypothesis was the easiest part (46%). And according to discriminate coefficient, analyzing the findings had the highest discriminate coefficient (83%), and selecting materials had the lowest discriminate coefficient (34%). Difficulty coefficient of the test was estimated about 63%, and discriminate coefficient was 66%. The results of Spearman correlation coefficient test showed that the correlation between scores related to designing CM with generating hypothesis equals to 85%, with selecting variable was 36% and with analyzing the results equals to 71%.Conclusion: Based on the result of this study, it is necessary for a designer of test to focus on selecting variable part of the test for improvement of quality and validity of the test. Furthermore, regarding to effectiveness of CM, it seems logical to pay more attention to their use