Pre-2016 IPUMS-CPS Constructed Family Pointers and Related Variables
In 2016, IPUMS-CPS updated its methods for constructing the family interrelationship variables SPLOC, MOMLOC, POPLOC, MOMRULE, and POPRULE, as well as added new variables, MOMLOC2, POPLOC2, MOM2RULE, and POP2RULE. These changes in constructed family interrelationship variables also affect several other constructed variables that depend on these pointers. These variables are NCOUPLES, NFAMS, NFATHERS, NMOTHERS, NCHILD, NCHLT5, NSIBS, ELDCH, YNGCH, FAMSIZE, and FAMUNIT. The files below include the previous version of the family pointers and affected family interrelationship variables. STEPMOM and STEPPOP, also pointer-dependent variables, were discontinued as of the August 2016 data release and are included in the files here. The unique identifiers are SERIAL, PERNUM, YEAR, MONTH, and ASECFLAG.
Pre-2016 Family Pointers and Pointer-dependent Variables
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A brief overview of the new IPUMS-CPS family pointers can be found here.