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Thoughts on DNA accuracy statistics

Replies: 27

Re: Thoughts on DNA accuracy statistics

Posted: 4 Dec 2012 6:17PM GMT
Classification: Query
I agree... some of my Ancestry results say I'm "Eastern European" when the furthest east in Europe my kin is from is the eastern coast of Italy.

I've also taken the DNA test offered by National Geographic. As far as they're concerned, I'm British and "Mediterranean" (as opposed to Eastern European).

It is really all a matter of the population they have to compare to. Like for NatGeo, my results were extremely similar to present-day Brits and Italians who have also submitted their DNA to NatGeo's genegraphic project, so I'm British and "Mediterranean".

NatGeo has over 500,000 test results.

Whereas Ancestry only has those of who are members and who took the test, maybe a few thousand sets of results right now at best. Over time, no doubt, all of us will find our percentages of ethnicity change.

It would certainly help if Ancestry did a better job of explaining how they come up with percentages, but one thing is sure, whoever you test with, you're just being compared to others who took that exact same test,so your "ethnicity" will appear to change from vendor to vendor (!)

SubjectAuthorDate Posted
cathymd 5 Dec 2012 1:17AM GMT 
Paige_Family 26 Nov 2012 1:27AM GMT 
terrilancaste... 26 Nov 2012 1:30AM GMT 
nathan_mn 26 Nov 2012 7:14AM GMT 
tonyaallyn 27 Nov 2012 3:14PM GMT 
terrilancaste... 28 Nov 2012 4:50AM GMT 
LeeHigdonNewe... 28 Nov 2012 1:52PM GMT 
tulrose 28 Nov 2012 2:27PM GMT 
terrilancaste... 29 Nov 2012 4:22AM GMT 
LeeHigdonNewe... 29 Nov 2012 1:06PM GMT 
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