TY  - JOUR
T1  - Stop or continue data collection: A nonignorable missing data approach for continuous variables
JF  - Journal of Official Statistics
Y1  - 2017
A1  - T. Paiva
A1  - J. P. Reiter
AB  - We present an approach to inform decisions about nonresponse follow-up sampling. The basic idea is (i) to create completed samples by imputing nonrespondents' data under various assumptions about the nonresponse mechanisms, (ii) take hypothetical samples of varying sizes from the completed samples, and (iii) compute and compare measures of accuracy and cost for different proposed sample sizes. As part of the methodology, we present a new approach for generating imputations for multivariate continuous data with nonignorable unit nonresponse. We fit mixtures of multivariate normal distributions to the respondents' data, and adjust the probabilities of the mixture components to generate nonrespondents' distributions with desired features. We illustrate the approaches using data from the 2007 U. S. Census of Manufactures.
ER  - 

TY  - JOUR
T1  - Stop or continue data collection: A nonignorable missing data approach for continuous variables
JF  - ArXiv
Y1  - 2015
A1  - T. Paiva
A1  - J.P. Reiter
KW  - Methodology
AB  - We present an approach to inform decisions about nonresponse followup sampling. The basic idea is (i) to create completed samples by imputing nonrespondents' data under various assumptions about the nonresponse mechanisms, (ii) take hypothetical samples of varying sizes from the completed samples, and (iii) compute and compare measures of accuracy and cost for different proposed sample sizes. As part of the methodology, we present a new approach for generating imputations for multivariate continuous data with nonignorable unit nonresponse. We fit mixtures of multivariate normal distributions to the respondents' data, and adjust the probabilities of the mixture components to generate nonrespondents' distributions with desired features. We illustrate the approaches using data from the 2007 U. S. Census of Manufactures.
UR  - http://arxiv.org/abs/1511.02189
IS  - 1511.02189
ER  -