This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'Bias can be eliminated by all except \nSelect and explain. \nA. Matching, B. Blinding, C. Randomization, D. Multivariate analysis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. d. Multivariate analysis Multivariate analysis refers to the analysis of two or more dependent variables at a time. It is done after the study has been conducted, to analyze the study. While matching, binding and randomization all are done when the study is being conducted. (AHMS November 2010 Repeat). * "Confounding factors are an impoant source of bias. This can be removed by matching in case-control studies." "The selection bias can be eliminated by randomization." "Interviewer\'s bias can be eliminated by double-blinding', 'role': 'assistant'}]