PAIR TYPE-WITH COUSINS,MORE DELETED
A fourth pair classification variable. Collapses most of the unrelated pair types into the NR group but does separate out the cousins. Codes the aunt/uncle, niece/nephew pairs, the group home pairs, the spouse pairs, and the in-law pairs as missing.... (view details)
Taken from: National Longitudinal Study of Adolescent Health (Add Health), 1994-2008: Sibling Files [Restricted Use] - Adolescent Pairs Data.