Alfred
Binet

Sorbonne




Théodore
Flournoy

University of Geneva (PsychTree)




Édouard
Claparède

Rousseau Institute


Jean
Piaget

University of Geneva




Édouard
Claparède

Rousseau Institute


Jean
Piaget

University of Geneva


Bärbel
Inhelder

University of Geneva


Annette
Karmiloff-Smith

Birkbeck College

Michael S. C.
Thomas

Birkbeck College
(Options)

Ane
Goikolea-Vives

Royal Veterinary College

Michael ThomasX