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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...

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Detalles Bibliográficos
Autores principales: McCambridge, Jim, Kalaitzaki, Eleftheria, White, Ian R, Khadjesari, Zarnie, Murray, Elizabeth, Linke, Stuart, Thompson, Simon G, Godfrey, Christine, Wallace, Paul
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Gunther Eysenbach 2011
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