False negatives in Family Finder test #dna

Gary Mokotoff <mokotoff@...>

It is my understanding that the Family Finder test of Family Tree DNA can
produce false positives, that is, two people may show close kinship but
actually may not be that closely related.

My question is whether the Family Finder test can also produce false
negatives. Specifically, I tested a woman and a man that hopefully was her
grandnephew (her sister's son's son). There was no Family Finder match.
Does this unconditionally conclude that they are not related? If false
negatives do occur, does anyone know at what rate given the kinship
described above?

Gary Mokotoff

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