Health research, medical education and clinical practice form the three pillars of modern day medical practice. As one authority rightly put it: ‘Health research is not a luxury, but an essential need that no nation can afford to ignore’. Health research can and should be pursued by a broad range of people. Even if they do not conduct research themselves, they need to grasp the principles of the scientific method to understand the value and limitations of science and to be able to assess and evaluate results of research before applying them. This review paper aims to highlight the essential concepts to the students and beginning researchers and sensitize and motivate the readers to access the vast literature available on research methodologies.

Health research, medical education and clinical practice form the three pillars of modern day medical practice. As one authority rightly put it: ‘Health research is not a luxury, but an essential need that no nation can afford to ignore’. Health research can and should be pursued by a broad rang...