Impact of Length or Relevance of Questionnaires on Attrition in Online Trials: Randomized Controlled Trial

Impact of Length or Relevance of Questionnaires on Attrition in Online Trials: Randomized Controlled Trial

BackgroundThere 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 Y...

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Bibliographic Details
Main Authors: McCambridge, Jim, Kalaitzaki, Eleftheria, White, Ian R, Khadjesari, Zarnie, Murray, Elizabeth, Linke, Stuart, Thompson, Simon G, Godfrey, Christine, Wallace, Paul
Format: Article
Language:English
Published: JMIR Publications 2011-11-01
Series:Journal of Medical Internet Research
Online Access:http://www.jmir.org/2011/4/e96/

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http://www.jmir.org/2011/4/e96/

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