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Activity Number: 572
Type: Contributed
Date/Time: Wednesday, August 6, 2014 : 2:00 PM to 3:50 PM
Sponsor: Survey Research Methods Section
Abstract #313159 View Presentation
Title: Unresolved Matched Records in Capture-Recapture Methodology
Author(s): Andrea C. Lamas*+ and Linda J. Young and Denise Abreu and Daniel Adrian
Companies: USDA/NASS and USDA/NASS and USDA/NASS and USDA/NASS
Keywords: Census of Agriculture ; June Area Survey ; Capture-recapture ; Under-coverage ; Non-response ; Misclassification
Abstract:

The National Agricultural Statistics Service (NASS) conducts a Census of Agriculture every 5 years, in years ending in 2 and 7. For the 2012 Census of Agriculture, capture-recapture methods were used to adjust the Census of Agriculture for under-coverage, non-response, and misclassification of farms/non-farms. NASS's June Area Survey (JAS), which is conducted annually in June, was used as the independent survey in the capture-recapture survey.

To use the capture-recapture framework, a matched dataset consisting of all matches of a Census of Agriculture record to a JAS record. This dataset is the foundation for modeling the probability that a JAS farm is captured by the Census of Agriculture. In the dataset, the farm status based on the JAS and the Census of Agriculture agree in most cases; however, in other cases, a record is identified as a farm (non-farm) on the JAS and a non-farm (farm) on the Census. These records have unresolved farm status. Resolving the farm status is an important step of the analysis. Characteristics of the records with unresolved farm status are considered. The approach to resolving farm status is discussed.


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