Cathy O'Neil, Columnist

Is Facebook Tough on Women? Let's Check the Data

Simpson's paradox makes that question difficult to answer.

Watch that paradox.

Photographer: Chris Jackson/Getty Images
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Does Facebook discriminate against female engineers? It’s a question that may take more than one statistical analysis to answer.

The issue has gained prominence thanks to the research of a former Facebook Inc. engineer, who -- according to the Wall Street Journal -- found that female engineers get more criticism of their code than their male peers, by a margin of 35 percent. Facebook responded that the analysis was incomplete: If it had taken into account the rank of the engineers, the discrepancy would have disappeared.