Supreme Court nominee Sonia Sotomayor’s published majority opinions in the last eight years do not paint a portrait of an activist judge, according to the co-author of a new book on measuring judicial activism.

To evaluate Sotomayor’s decisions since January 2001, Stefanie Lindquist of the University of Texas School of Law applied the political science tools and activism classifications used in her book to examine Supreme Court justices’ votes over the last five decades. She is co-author with Frank Cross, also of the University of Texas School of Law, of “Measuring Judicial Activism.”