Hugo
Münsterberg

Universität Berlin




Wilhelm
Wundt

University of Leipzig


Hugo
Münsterberg

Universität Berlin


Edward Chace
Tolman

UC Berkeley


Wilhelm
Wundt

University of Leipzig






Josiah
Royce

Harvard (Philosophy Tree)






Warner
Brown

UC Berkeley




Josiah
Royce

Harvard (Philosophy Tree)






Harold Ellis
Jones

UC Berkeley (PsychTree)




Hugo
Münsterberg

Universität Berlin


Edward Chace
Tolman

UC Berkeley




Donald "Don" Thomas
Campbell

Lehigh University




Rensis
Likert

University of Michigan


Floyd Henry
Allport

Maxwell School of Syracuse University


Daniel
Katz

University of Michigan (PsychTree)




Thomas
Cook

Northwestern

Melvin M.
Mark

Penn State
(Options)

Robert C
Sinclair

Laurentian University

Sean E
Moore

University of Alberta


Melvin MarkX