The effectiveness of a monetary incentive offer on survey response rates and response completeness in a longitudinal study
Abstract Background Achieving adequate response rates is an ongoing challenge for longitudinal studies. The World Trade Center Health Registry is a longitudinal health study that periodically surveys a cohort of ~71,000 people exposed to the 9/11 terrorist attacks in New York City. Since Wave 1, the...
Main Authors: | , , , , , , , |
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Format: | Article |
Language: | English |
Published: |
BMC
2017-04-01
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Series: | BMC Medical Research Methodology |
Subjects: | |
Online Access: | http://link.springer.com/article/10.1186/s12874-017-0353-1 |