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How Evidence Based Medicine brings the Connection between Evidence and Measurement into FocusThe randomised controlled trials and observational studies that underpin evidence based medicine (EBM) are grounded by statistics/quantitative data. Given the role of measurement in obtaining this 'evidence', it is clear that the methods used when collecting data in epidemiological studies, and the nature of the data itself, is of great importance. Only when the appropriate measures are employed will the evidence used in EBM be good evidence. In this paper I examine the types of evidence EBM takes to be of primary importance, and highlight the relationship between evidence and measurement that EBM brings into focus.
University of Johannesburg