Uses the concept of triangulation, in which phenomena are studied from a variety of vantage points. randomized controlled trials and observational studies) and the pooling of evidence using modeling to estimate a ‘true’ effect of a policy or programme, conditional on both the design of the study and the characteristics of the relevant population It uses an iterative approach to refining the research question, the searching and selection of articles from the literature, and defining and applying codes and categories.Ī form of meta-analysis, which allows the mixing of different quantitative research designs (e.g. Text is condensed into fewer content-related categories.ĭeveloped from meta-ethnography, it is an approach to the entire process of a review rather than just the synthesis component. It differs from more ‘qualitative’ methods in that it requires categorization to be sufficiently precise to allow multiple coders to achieve the same results, it relies on the systematic application of rules, and it tends to draw on the concepts of validity and reliability.
It allows qualitative evidence to contribute to meta-analysis by identifying variables to be included and providing evidence about effect sizes (qualitative evidence gets converted into quantitative form) and helps to ensure that meta-analyses more properly reflect the diversity of evidence at primary level – it recognizes the fact that evidence from multiple sources usually needs to be combined to inform policy decisions.Ī technique for categorising data and determining the frequencies of these categories.
(Sutton, AJ, 2001 Roberts KA, 2002) Ī method used in meta-analysis to offer flexibility in handling data from diverse study types (i.e., the integration qualitative and quantitative forms of evidence).
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