GENEALOGY-DNA-L Archives

Archiver > GENEALOGY-DNA > 2002-08 > 1030561367


From: John S Walden <>
Subject: Re: [DNA] How Specific is 12 marker test
Date: Wed, 28 Aug 2002 15:02:47 -0400
In-Reply-To: <3D6D1315.3020207@yahoo.com>


At 08:14 PM 8/28/2002 +0200, you wrote:
>I would be interested in hearing what other list members think about thes=
>e results. I personally was surprised that the additional marker upgrade=
> didn't lead to even finer discrimination among cases - more people staye=
>d "closely related" at the 25-marker step than I might have expected befo=
>re looking at the data.


Thanks for plowing through the studies to get the data.
Here is some of what I got out of the analysis

First, it looks like applying thought to the process of upgrade or not does
work.

Second, A 12/12 match gives about an 80% assurance of relatedness.
Thus if one is looking for that 95% confidence, that quite often comes up
in statistics,
then the 23 or 25 marker test will be required.

Third, A match of 10 out of 12 should be considered as NOT a match.
John W

This thread: