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This section describes the data editing and imputation procedures applied to data from the Survey of Income and Program Participation (SIPP) after completion of the interviews. Three different approaches are used for dealing with missing data in SIPP:
Weighting is discussed in Chapter 8 of the SIPP Users' Guide.
The section begins with a brief discussion of the types of missing data and the goals of imputation in SIPP. It then presents an overview of the editing and imputation procedures used to deal with missing and inconsistent data. Next, the chapter provides a detailed description of each of the major steps used by the Census Bureau when creating its internal files and the files that are released for public use. Prior to 1996 the development of cross-sectional wave files involved mainly cross-sectional editing and imputation. The longitudinal files involved longitudinal editing. Beginning with the 1996 Panel, the processing procedures for the wave files were replaced with methods that use prior wave information to inform the editing and imputation of a current wave (after wave 1). The generic imputation technique, that is, the hot-deck method, is still used in the 1996+ Panels, but the donors are now chosen on the basis of similarities in reported prior wave information when that reported information exists.
Types of Missing Data
Missing Data Problems
Handling Missing Data
Data Editing and Imputation Goals
Effects of Imputed Data on Analysis
Processing SIPP Data
Confidentiality Procedures
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Page Last Modified: May 9, 2006
