Harry F.
Harlow

UW Madison (Primatology Tree)
?


Alfred
Adler

Vienna University (PsychTree)










John A.
McGeoch

Iowa State




Arthur W.
Melton

University of Michigan








Henry
Garrett

(PsychTree)


Max
Hertzman

CCNY (PsychTree)






Kenneth W.
Spence

Iowa University


Carl
Stumpf

Universität Berlin




Max
Wertheimer

New School for Social Research




Leon
Festinger

New School for Social Research


Elliot
Aronson

UC Santa Cruz

Marti
Gonzales

UMN
(Options)

Marti GonzalesX