Hans Walter Gruhle (7 November 1880, in Lübben – 3 October 1958) was a German psychiatrist known for his work on the relationship between criminology and psychology.[1]
Gruhle was educated in Leipzig, Würzburg, and Munich, receiving his first doctorate in Munich in 1904 under the supervision of Emil Kraepelin.[2] In 1905, he joined the psychology department at Heidelberg University, remaining there for almost 30 years.[2] Soon after he began working at Heidelberg, he met Max Weber and his wife, Marianne Weber. He subsequently advised Weber's work in the field of experimental psychology.[3] He received his second doctorate, a habilitation, from Heidelberg.[4]
His most notable work was "Comprehending Psychology" (1948), which discusses the relationship between psychology and other sciences.[2] He also wrote journal articles about such topics as the sterilization of criminals[1] and the utility of the ergograph.[3]