Workplace diversity advocates hope to shine a spotlight on the industry’s hiring efforts, which remain abysmal. At Twitter, only 10 percent of tech jobs in its global workforce belong to women. Among its U.S. employees, just 4 percent of those lucrative positions are filled by black or Latino people. The numbers aren’t much different at places like Facebook, Google and Yahoo. Even Apple, which can point to above-average diversity, still counts just 20 percent of its tech hires as female, and black or Latino workers make up only 13 percent.

Anecdotes of implicit gender bias reinforce what Kieran Snyder, a tech industry veteran with a Ph.D. in linguistics found when she conducted an informal survey of performance reviews submitted by male and female employees at various tech companies. Women were far more likely than men to receive negative feedback. Adjectives like “bossy,” “strident” and “abrasive” — along with “emotional” and “irrational” — were applied exclusively to women when describing behavior.