AncestryDNA: Improve Your Reference Panel To Make Your DNA Testing Accurate

The Issue

AncestryDNA’s DNA results were once again…not really updated. Looking at their July 2021 “Ethnicity Whitepaper”shows one why. The author of this petition had to take a research-methods class in college and can therefore easily say that if she ever submitted a [paper like this her Political Research Methods Class—which used general research methods—she would’ve gotten a failing grade for selection bias as well as an unbalanced and a not-as-random sample. For example, the sample comparison between Eastern European and European Jewish is now 1,454:447 or about 3:1.

This is also not the first time today ancestry has had severe problems in their paneling— as many protested when Ashkenazi Jews (full- and non-full-blooded ones, and the author of this petition included) came up as “Eastern European“ per their beta panel.

There is also the issue of the fact that many Jews pass as gentile, which Ancestry seems to refuse to consider. This is not fair to Jews, some of whose ancestors did and continue to try to pass (many of the petition author’s ancestors included), whom are trying to discover more about and prove their heritage. Of course, Jews are not the only group whom had and have that tried to pass to avoid discrimination—and Ancestry also seems to fail to take this into account.

Ancestry needs to do better by making at least the following changes:

  1. Have each reference group have up to 400 to 1000 people, as those are in the minimal-acceptable number of samples in any research panel.
  2. Have all groups have an even-as-possible and an equal number of samples. For example, 400:400 Eastern European:European Jewish or 1,000:1,000 Eastern European:European Jewish is acceptable. 1,454:447 is not.
  3. Do not include Eastern Europe—the Slavic and Baltic countries (e.g., Poland, Slovakia, Lithuania, and Latvia), Hungary (Magyarország), and Romania—as a part of Southeastern Europe—the Balkan countries (e.g., Croatia, Slovenia, Bosnia and Herzegovina, and Serbia) Among both Eastern Europeans & Southeastern Europeans and Ashkenazi & Sephardi Jews, the distinction between Eastern Europe and Southeastern Europe is made for a reason.
  4. Do not include Central European countries such as Germany and Austria among Eastern European countries. Besides, Jews from the Jewish Diaspora in countries such as Germany and Austria are classified as Western Ashkenazi Jews, and Jews from the Jewish Diaspora in Eastern European countries are classified as Eastern Ashkenazi Jews, for a reason.
  5. Similarly to changes three and four above, take geoethnic and ethnocultural differences into account for gentile groups as well as  Jewish groups—for example, once again, Germany and Austria are not a part of Eastern Europe; and the Balkan countries are also not a part of Eastern Europe. As, for instance, Jews and Arabs separated millennia ago, Slavs and Balkaners separated over a millennium ago — in fact, a quick Google search will pull up that even quite a few Balkaners do not consider themselves Slavic, just as Arabs are not considered Hebraic.

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The Issue

AncestryDNA’s DNA results were once again…not really updated. Looking at their July 2021 “Ethnicity Whitepaper”shows one why. The author of this petition had to take a research-methods class in college and can therefore easily say that if she ever submitted a [paper like this her Political Research Methods Class—which used general research methods—she would’ve gotten a failing grade for selection bias as well as an unbalanced and a not-as-random sample. For example, the sample comparison between Eastern European and European Jewish is now 1,454:447 or about 3:1.

This is also not the first time today ancestry has had severe problems in their paneling— as many protested when Ashkenazi Jews (full- and non-full-blooded ones, and the author of this petition included) came up as “Eastern European“ per their beta panel.

There is also the issue of the fact that many Jews pass as gentile, which Ancestry seems to refuse to consider. This is not fair to Jews, some of whose ancestors did and continue to try to pass (many of the petition author’s ancestors included), whom are trying to discover more about and prove their heritage. Of course, Jews are not the only group whom had and have that tried to pass to avoid discrimination—and Ancestry also seems to fail to take this into account.

Ancestry needs to do better by making at least the following changes:

  1. Have each reference group have up to 400 to 1000 people, as those are in the minimal-acceptable number of samples in any research panel.
  2. Have all groups have an even-as-possible and an equal number of samples. For example, 400:400 Eastern European:European Jewish or 1,000:1,000 Eastern European:European Jewish is acceptable. 1,454:447 is not.
  3. Do not include Eastern Europe—the Slavic and Baltic countries (e.g., Poland, Slovakia, Lithuania, and Latvia), Hungary (Magyarország), and Romania—as a part of Southeastern Europe—the Balkan countries (e.g., Croatia, Slovenia, Bosnia and Herzegovina, and Serbia) Among both Eastern Europeans & Southeastern Europeans and Ashkenazi & Sephardi Jews, the distinction between Eastern Europe and Southeastern Europe is made for a reason.
  4. Do not include Central European countries such as Germany and Austria among Eastern European countries. Besides, Jews from the Jewish Diaspora in countries such as Germany and Austria are classified as Western Ashkenazi Jews, and Jews from the Jewish Diaspora in Eastern European countries are classified as Eastern Ashkenazi Jews, for a reason.
  5. Similarly to changes three and four above, take geoethnic and ethnocultural differences into account for gentile groups as well as  Jewish groups—for example, once again, Germany and Austria are not a part of Eastern Europe; and the Balkan countries are also not a part of Eastern Europe. As, for instance, Jews and Arabs separated millennia ago, Slavs and Balkaners separated over a millennium ago — in fact, a quick Google search will pull up that even quite a few Balkaners do not consider themselves Slavic, just as Arabs are not considered Hebraic.

The Decision Makers

Deb Liu
Deb Liu
President and CEO, Ancestry.com
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