Support #1817
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oldest child via family matrix
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Description
Dear Understanding Society team,
I am pleased to work with your newly released family matrix. My question regards the parent-child relationship identifier.
For my research I am interested in the first (alive) child of a parent. I aim to identify the oldest child by checking which of the listed children is the oldest, but I am wondering whether actually all of a parent's children are listed. If the oldest child of a parent for example has rejected to ever participate in the survey whereas younger siblings have participated, then my identification gives incorrect results.
Would you be able to clarify whether this is a possibility, and if so, how often you expect this case to occur?
Moreover, I wonder how you would recommend me to deal with twins. Specifically, in the household files where children are often already listed in order of birth, do you use a general rule to decide which twin to put first and which second (e.g., based on whether the child is a boy or girl)?
Thank you very much in advance!
Best,
Lieke
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