Variable for checking if parent has same ex-partner for all children
I'm looking at waves 3, 5 and 7 of the individual file and the variable exsame. I noticed something that looks strange in changes from wave to wave. For some individuals they respond "no" to the question: "is the father/mother of all your children the same person?" in earlier waves 21/23 and then in wave 23/25 change their response to "yes" the father/mother of all your children is the same person. This doesn't seem to make logical sense (I'd understand/be able to check the other way round as respondents may have new children in the survey period). It seems to occur for enough observations not to just be a mistake by the respondent. Do you have any insights on this?
Thanks in advance,