Improved imputation of non‐responses to mailback questionnaires
作者:
J. Wanzer Drane,
Donna Richter,
Carleen Stoskopf,
期刊:
Statistics in Medicine
(WILEY Available online 1993)
卷期:
Volume 12,
issue 3‐4
页码: 283-288
ISSN:0277-6715
年代: 1993
DOI:10.1002/sim.4780120311
出版商: Wiley Subscription Services, Inc., A Wiley Company
数据来源: WILEY
摘要:
AbstractPoor response rates, perhaps as low as 10 to 30 per cent, certainly bring into question the validity of any survey suffering such a malady. Repeated mailouts are capable of providing information on those persons who are resistant to responding. If one is willing to assume an exponential drop‐off in response rates, then imputation is possible for the entire group of non‐responders. Furthermore, a second exponential drop‐off in favourable (or non‐favourable) responses to particular items within the questionnaire leads to closed form estimates of population parameters and their associated standard errors. Three or more mailouts also provide a test of validity of the model
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