High
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Explicitly mentions and focuses on all three topics (3Cs) of case study, context and complex health interventions
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Mentions 2Cs PLUS it: shows depth and explanation of ‘case’; may have theory relevant to context and/or complexity
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Partial
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Mentions 3Cs but appears to give very little detail
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Close reading of methods does not give clear indication of focus or depth
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Low
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A case study of a complex intervention (2Cs)
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The description or the research means there are questions over overall quality or relevance to questions of context, complexity or case study methodology
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