Go Back   Family Tree DNA Forums > Universal Lineage Testing (Autosomal DNA) > Family Finder Advanced Topics

Family Finder Advanced Topics Advanced discussion about Family Tree DNA's Family Finder Product.

Reply
 
Thread Tools Display Modes
  #1  
Old 11th July 2018, 07:54 AM
Frederator Frederator is offline
FTDNA Customer
 
Join Date: Jul 2010
Posts: 819
How common is misattribution?

By "misattribution", I mean incorrectly identifying the MRCA.

I've encountered this a few times myself, as time goes on and additional matches in a specific region clarify the path of descent. But I'm struggling for some way to quantify this phenomenon.

My first try: I've identified 13 matches (out of a total of roughly 1,300 total) where I know for a fact that donors share ancestry with each other besides the line to which our shared DNA is properly attributable.

I'm sure there are many, many more. I have identified MRCAs for only a small minority of my matches, and most have at least one significant brick wall.

Some of these cases are easy to understand--families living in proximity for centuries are likely to have complex relationships. But a lot of them are just really surprising.
Reply With Quote
  #2  
Old 11th July 2018, 12:48 PM
georgian1950 georgian1950 is online now
FTDNA Customer
 
Join Date: Jun 2012
Posts: 748
Quote:
Originally Posted by Frederator View Post
By "misattribution", I mean incorrectly identifying the MRCA.
Probably a lot. I find in the field that people see what they want to see (all the way from novice to expert/professional). The methodology is loose enough that they can get away with it.

Jack
Reply With Quote
  #3  
Old 11th July 2018, 01:27 PM
georgian1950 georgian1950 is online now
FTDNA Customer
 
Join Date: Jun 2012
Posts: 748
Robert Estes has a new blog entry which might be relevant to this discussion:

https://dna-explained.com/2018/07/11...titutes-proof/

Jack
Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Common/ Not in common Ramc59 DNA and Genealogy for Beginners 1 21st June 2017 09:39 AM
In common/not in common with feature Boudicca Family Finder Basics 1 12th March 2017 01:24 PM
In Common With and Not In Common With dead in IE11 192971 Features Requests & Bug Reports Area 8 8th December 2014 12:30 PM
In Common With Kathleen Carrow Family Finder Advanced Topics 15 3rd May 2012 10:38 AM
FF Illumina In-Common and Not-In-Common mkdexter Family Finder Advanced Topics 2 1st March 2011 12:06 PM


All times are GMT -5. The time now is 10:33 AM.


Family Tree DNA - World Headquarters

1445 North Loop West, Suite 820
Houston, Texas 77008, USA

Phone: (713) 868-1438 | Fax: (832) 201-7147
Copyright 2001-2010 Genealogy by Genetics, Ltd.
Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.