Methods to increase response to postal and electronic questionnaires

Edwards, Phil; Roberts, Ian; J Clarke, Mike; DiGuiseppi, Carolyn; Wentz, Reinhard; Kwan, Irene; Cooper, Rachel; Felix, Lambert; Pratap, Sarah

doi:10.1002/14651858.mr000008.pub4

Public

Methods to increase response to postal and electronic questionnaires

Published in Cochrane Database of Systematic Reviews • Jul 3, 2009

Authors:

Phil Edwards

Ian Roberts

Mike J Clarke

Abstract

BACKGROUND: Postal and electronic questionnaires are widely used for data collection in epidemiological studies but non-response reduces the effective sample size and can introduce bias. Finding ways to increase response to postal and electronic questionnaires would improve the quality of health res...

Subject

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Medicine

Publication bias

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