 In 2003 anthropologists Clarence C. Gravlee, H. Russell Bernard, and William R. Leonard reanalyzed Boas's data and concluded that most of Boas's original findings were correct.Moreover, they applied new statistical, computer-assisted methods to Boas's data and discovered more evidence for cranial plasticity.In a later publication, Gravlee, Bernard and Leonard reviewed Sparks and Jantz's analysis.