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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Veröffentlicht in:BMC Med Res Methodol
Hauptverfasser: Heijmans, Naomi, van Lieshout, Jan, Wensing, Michel
Format: Artigo
Sprache:Inglês
Veröffentlicht: BioMed Central 2015
Schlagworte:
Research Article
Online Zugang: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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