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Secular trends and evaluation of complex interventions: the rising tide phenomenon
Evaluations of service delivery interventions with contemporaneous controls often yield null results, even when the intervention appeared promising in advance. There can be many reasons for null results. In this paper we introduce the concept of a ‘rising tide’ phenomenon being a possible explanatio...
| Autores principales: | , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
BMJ Publishing Group
2016
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4853562/ https://www.ncbi.nlm.nih.gov/pubmed/26442789 http://dx.doi.org/10.1136/bmjqs-2015-004372 |