What is the difference between missing completely at random and missing at random?

The terminology describing missingness mechanisms is confusing. In particular the meaning of ‘missing at random’ is often misunderstood, leading researchers faced with missing data problems away from multiple imputation, a method with considerable advantages. The purpose of this article is to clarif...

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Detalles Bibliográficos
Autores principales: Bhaskaran, Krishnan, Smeeth, Liam
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2014
Materias:
Education Corner
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4121561/
https://www.ncbi.nlm.nih.gov/pubmed/24706730
http://dx.doi.org/10.1093/ije/dyu080
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author Bhaskaran, Krishnan
Smeeth, Liam
author_facet Bhaskaran, Krishnan
Smeeth, Liam
author_sort Bhaskaran, Krishnan
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description The terminology describing missingness mechanisms is confusing. In particular the meaning of ‘missing at random’ is often misunderstood, leading researchers faced with missing data problems away from multiple imputation, a method with considerable advantages. The purpose of this article is to clarify how ‘missing at random’ differs from ‘missing completely at random’ via an imagined dialogue between a clinical researcher and statistician.
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spelling pubmed-41215612014-12-08 What is the difference between missing completely at random and missing at random? Bhaskaran, Krishnan Smeeth, Liam Int J Epidemiol Education Corner The terminology describing missingness mechanisms is confusing. In particular the meaning of ‘missing at random’ is often misunderstood, leading researchers faced with missing data problems away from multiple imputation, a method with considerable advantages. The purpose of this article is to clarify how ‘missing at random’ differs from ‘missing completely at random’ via an imagined dialogue between a clinical researcher and statistician. Oxford University Press 2014-08 2014-04-04 /pmc/articles/PMC4121561/ /pubmed/24706730 http://dx.doi.org/10.1093/ije/dyu080 Text en © The Author 2014; all rights reserved. Published by Oxford University Press on behalf of the International Epidemiological Association http://creativecommons.org/licenses/by/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Education Corner
Bhaskaran, Krishnan
Smeeth, Liam
What is the difference between missing completely at random and missing at random?
title What is the difference between missing completely at random and missing at random?
title_full What is the difference between missing completely at random and missing at random?
title_fullStr What is the difference between missing completely at random and missing at random?
title_full_unstemmed What is the difference between missing completely at random and missing at random?
title_short What is the difference between missing completely at random and missing at random?
title_sort what is the difference between missing completely at random and missing at random?
topic Education Corner
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4121561/
https://www.ncbi.nlm.nih.gov/pubmed/24706730
http://dx.doi.org/10.1093/ije/dyu080
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