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Improving participation rates by providing choice of participation mode: two randomized controlled trials
BACKGROUND: Low participation rates reduce effective sample size, statistical power and can increase risk for selection bias. Previous research suggests that offering choice of participation mode can improve participation rates. However, few head-to-head trials compared choice of participation mode...
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| Publicado no: | BMC Med Res Methodol |
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| Main Authors: | , , |
| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
BioMed Central
2015
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| Assuntos: | |
| Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC4392857/ https://ncbi.nlm.nih.gov/pubmed/25886757 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1186/s12874-015-0021-2 |
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