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363 – Advances in Missing Data Imputation
Analysis of Variance as a Basis for Sample Surveys
Sponsor: Survey Research Methods Section
Keywords: Stratification, Clustering, Regression Estimates, Ratio Estimates, Between-cluster Variance, Within-cluster Variance
Andrew Vogt
Georgetown University
Dhiren Ghosh
Synectics for Management Decisions, Inc.
In sample surveys variance generally decomposes into the sum of two
terms: variance among primary units and variance within primary units.
If the secondary units are composite, variance within a primary unit
can be decomposed into variance among secondary units and variance within
secondary units. This can be extended as necessary. This decomposition
is the central idea in stratified sampling, cluster sampling, regression
and ratio estimation, and ANOVA. It can also be applied to cases where
the primary units overlap.