From the New York Times, September 27, 2014:
A NEW study by the linguist and tech entrepreneur Kieran Snyder, done for Fortune.com, found two differences between workplace performance reviews given to men and women. Across 248 reviews from 28 companies, managers, whether male or female, gave female employees more negative feedback than they gave male employees. Second, 76 percent of the negative feedback given to women included some kind of personality criticism, such as comments that the woman was “abrasive,” “judgmental” or “strident.” Only 2 percent of men’s critical reviews included negative personality comments.
For the whole article, see the New York Times website.