Synthesise data across evaluations

These methods answer questions about a type of intervention rather than about a single case – questions such as “Do these types of interventions work?” or “For whom, in what ways and under what circumstances do they work?”

The task involves locating the evidence (often involving bibliographic searches of databases, with particular emphasis on finding unpublished studies), assessing its quality and relevance in order to decide whether or not to include it, extracting the relevant information, and synthesizing it.  Different options use different strategies and have different definitions of what constitutes credible evidence.


'Synthesise data across evaluations' is referenced in: