Impact and Costs of Incentives to Reduce Attrition in Online Trials: Two Randomized Controlled Trials

BackgroundAttrition from follow-up is a major methodological challenge in randomized trials. Incentives are known to improve response rates in cross-sectional postal and online surveys, yet few studies have investigated whether they can reduce attrition from follow-up in online trials, which are par...

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Príomhchruthaitheoirí: Khadjesari, Zarnie (Údar), Murray, Elizabeth (Údar), Kalaitzaki, Eleftheria (Údar), White, Ian R (Údar), McCambridge, Jim (Údar), Thompson, Simon G (Údar), Wallace, Paul (Údar), Godfrey, Christine (Údar)
Formáid: LEABHAR
Foilsithe / Cruthaithe: JMIR Publications, 2011-03-01T00:00:00Z.
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