The American Bar Association’s Commission on Women in the Profession this month released a second edition of “Fair Measure Toward Effective Attorney Evaluations,” which is a guide for law firms about how to eliminate bias toward female lawyers.

The manual specifically looks at how to conduct performance reviews that are fair to both men and women. According to the guide, women now constitute nearly half of law school graduates and 30 percent of all lawyers, but make up only 17 percent of partners in private firms. The guide says this is at least partially due to a biased job evaluation process.