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Impact of Length or Relevance of Questionnaires on Attrition in Online Trials: Randomized Controlled Trial
BACKGROUND: There has been limited study of factors influencing response rates and attrition in online research. Online experiments were nested within the pilot (study 1, n = 3780) and main trial (study 2, n = 2667) phases of an evaluation of a Web-based intervention for hazardous drinkers: the Down...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Gunther Eysenbach
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3236666/ https://www.ncbi.nlm.nih.gov/pubmed/22100793 http://dx.doi.org/10.2196/jmir.1733 |