Item test analysis to assess the difficulty index for biostatistics, epidemiology, and demography module of undergraduate medical students of Raipur, Chhattisgarh, India
Background: “Psychometry” has been developed as a branch of psychology that deals with the measurement of psychological traits or mental abilities like intelligence, aptitude, opinion, interest, personality, or scholastic achievement. Term Examination or Test series are being increasingly used in such an assessment. “Item Analysis” examines student responses to individual test items to assess the quality of those items and test as a whole to improve or revise items and the test.
Objective: To assess the difficulty Index of third-year undergraduate students towards the biostatistics, epidemiology, and demography module. Materials and
Methods: This is a cross-sectional observational study was conducted among 130 undergraduate medical students for Internal and External examination using a set of 3 questions related to the Biostatistics, Epidemiology and Demography module after 25 hours of teaching. Data were collected and entered in Microsoft Excel and analyzed using IBM SPSS version 23.0 software.
Results: The majority of study subjects were females (57.7%), Hindu by religion (90.0%), studied in English Medium School (79.2%). Only 14.6% of them took Biology with Mathematics subjects during higher secondary studies. Approximately 52.3%, 78.5%, and 74.5% of study subjects correctly solved questions of Biostatistics, Epidemiology, and Demography in the External Examination. The Difficulty of Biostatistics relative to Epidemiology was 7.3 times higher than the Epidemiology relative to Demography in the External Examination.
Conclusion: Biostatistics module was more difficult than other modules for Undergraduate medical students.
Gupta SC, Kapoor VK. Introduction (Meaning & Scope): Fundamental of Mathematical Statistics. 11th revised ed. 2002.
Grady CS, Looney Swa, Steiner RP. A Study of Biostatistics in medical schools in the united states. In Proceedings of the ASA Sections on Statistical Education: 1994; Alexandria, Virginia, USA ASA; 1994: 263-265.
Understanding Item Analysis. Available from: https://www.washington.edu/assessment/scanning-scoring/scoring/reports/item-analysis/.
Singh T, Gupta P, Singh D. Test & Item Analysis: Principles of Medical Education. 3rd ed. New Delhi: Jaypee Brothers Medical Publishers ℗ ltd. 2009; 70-77.
Matlock Hetzel S. Basic concept in item & test analysis. Proceeding at annual meeting of the southwest educational research association. Austin, January 1997.
Gupta SC, Kapoor VK. Statistics in Psychology and Education: Fundamental of Applied Statistics. 4th revised ed. 2007.
Sarin YK, Khurana M, Natu MV, Thomas AG, Singh T. Item analysis of published MCQs. Indian Paediatrics. 1998; 35(11):1103-1105.
Ahmad F, Zehra N, Omair A, Anjum Q. Students opinion regarding application of Epidemiology, Biostatistics and Survey Methodology Courses in Medical research. J Pak Med Assoc.2009;59 (5):307-310.
Kumar L, Shahnawaz K, Choudhary S, Sarkar G, Barman SK & Singh JB. Attitudes towards biostatistics among post graduate medical students in Kishanganj, Bihar. J Evol Med Dent Sci. 2014;3(3):758-761. doi: 10.14260/jemds/2014/1898.
Butt AK and Khan AA. Teaching biostatistics and epidemiology in a post graduate medical institution: are we going in the right direction. Eastern Mediterr Health J. 2008;14(5):1192-1197.
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