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Assessing evidence

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Purpose: To provide a process for describing and further assessing propositions, which are “proposals on best practice that have a solid evidence base but remain contested.” Description: The development of propositions has two phases: an initial phase, where “a small group of researchers and practitioners define a set of evidence-based insights and counterview for a […]
Purpose: To help with finding and using research evidence. The focus is on health policy making and these tools are aimed at those responsible for making decisions about health policies and programs (eg., elected officials, civil servants), those who support these decision makers (eg., policy analysts, political staffers, independent advisers) and health system stakeholders (eg., […]
GRADE stands for ‘Grading of Recommendations Assessment, Development and Evaluation’. It was developed for health systems interventions. The GRADE approach separates two issues: “the quality of the evidence and the strength of recommendations. Quality of evidence is only one of several factors considered when assessing the strength of recommendations.” The intention of the GRADE approach […]
Purpose: To describe common problems that can occur with grading systems which may negate their usefulness in justifying evidence-based changes in policy and practice. Description: In order to summarise the state of research on particular topics, the quality and robustness of scientific results is often assessed using one of a number of so-called grading instruments […]
Purpose: To provide an understanding of confirmation bias and ways to avoid it, in order to support good decision making on complex problems. Description: Confirmation bias manifests as follows: (1) We accept a story uncritically if it confirms what we would like to be true and reject it if it contradicts what we would like to be true. (2) We accept a fact as data, even if it is an outlier which is not backed up by large-scale data. (3) We accept data as evidence, even if it is consistent with rival theories, without looking for evidence that supports one theory and rules out all rival theories...

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