Research Article
Effect of Errors in Dual Record System Estimates
Received Date:November 3, 2022; Published Date:November 22, 2022
Abstract
This article examines the direction and magnitude of biases involved in the application of dual record systems for estimating vital events. During this study, three sources of error are considered; inclusion of spurious reports of vital events, matching errors, and lack of statistical independence of the two data collection systems. Since the biases produced by each of these components may be of opposite signs, the total bias may be less than the error produced by a single source. Expressions for the relative bias from each of the components are developed and combined in a model for total relative bias.
Keywords:Correlation bias; Dual record systems; DRS estimators; Matching errors; Measurement errors;Registration systems; Sample surveys; Spurious reports; Statistical independence; Vital statistics
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