Karl Ewald
Hasse

Universität Göttingen


Johannes Peter
Müller

Universität Berlin


Hermann
von Helmholtz

Physikalisch-Technische Reichsanstalt


Wilhelm
Wundt

University of Leipzig


Willy
Hellpach

Heidelberg University (PsychTree)


Wilhelm
Witte

University of Regensburg, Germany
?


Fred
Attneave

University of Oregon


Richard K.
Olson

CU Boulder








John S.
Werner

UC Davis


Alfred
Binet

Sorbonne




Édouard
Claparède

Rousseau Institute


Jean
Piaget

University of Geneva


Jean
Piaget

University of Geneva


Bärbel
Inhelder

University of Geneva


Ernst
Boesch

University of Saarland


Paul
Baltes

Max Planck Institute for Human Development (Berlin)

Reinhold
Kliegl

University of Potsdam
(Options)


Martin R.
Vasilev

Bournemouth University (United Kingdom) (PsychTree)

Jochen
Laubrock

University of Potsdam, Germany

Olaf
Dimigen

Humboldt University Berlin

Ulrich
Mayr

University of Oregon

Ralf
Krampe

KU Leuven


Lixia
Yang

Ryerson University

Michael
Dambacher

University of Potsdam

Ralf
Engbert

University of Potsdam

Martin
Rolfs

HU Berlin

Antje
Nuthmann

Christian-Albrechts University of Kiel

Martin
Rolfs

HU Berlin



Sven
Ohl

HU Berlin

Carlos
Cassanello

The Australian National University

Reinhold KlieglX