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SPLIT
Large group quarters that was split up (100% datasets)
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Description

SPLIT identifies residents of group quarters containing more than 60 people in the 100% datasets.

As a part of IPUMS data processing, group quarters units containing more than 60 people were split into 1-person households, each with their own unique value in the IPUMS SERIAL variable. For this reason, the SERIAL variable makes it impossible to identify any group of people who share a group quarters unit containing more than 60 people.

Researchers needing to analyze intact group quarters units containing more than 60 people (such as the residents of a large prison or poorhouse) should use SPLITHID and SPLITNUM, instead of SERIAL and NUMPREC.

SPLITHID assigns a common serial number to all residents of each group quarters and housing unit, regardless of size. SPLITNUM provides the original number of person records that are included in the sampled unit in the 100% datasets.