Proportion of U.S. Doctorates Earned by Minority Students Grew in 2006, Report Says

By AUDREY WILLIAMS JUNE

Twenty percent of the more than 26,000 research doctorates awarded to U.S. citizens by American universities in 2006 went to members of minority groups, according to a newly released report sponsored by a group of federal agencies. The number of minority-group members who earned Ph.D's...