How do IPUMS-International data differ from public samples that may already be in distribution?
A limited number of the IPUMS-International samples are also distributed by national statistical offices through alternative means. The IPUMS-International samples do differ, however. They are subjected to a battery of tests for structural integrity, and we may have edited the data to fix errors in household structure. We also generate our own set of technical and constructed variables. All documentation is translated into English and edited as appropriate. Most significantly, all integrated variables are recoded and documented in an international context to enhance comparative research.