1951-1954

President
Vice President
Treasurer
Secretary-General
Deputy Secretary-General       

Piéron, H. (France)
Bartlett, F.C. (UK)
Katz, D. (Sweden)
Langfeld, H.S. (USA)
Piaget, J. (Switzerland)

1954-1957

President
Vice President
Treasurer
Secretary-General
Deputy Secretary-General       

Piaget, J. (Switzerland)
Rasmussen, T. (Denmark)
Mailloux, N. (Canada)
Klineberg, O. (USA)
Germain, J. (Spain)

Bartlett, F.C. (UK)
Drever, J. Jr (UK)
Duijker, H.C.J. (The Netherlands)
Elmgren, J. (Sweden)                                    
Langfeld, H.S. (USA)
Michotte, A. (Belgium)
Piéron H. (France)

1957-1960

President
Vice President
Treasurer
Secretary-General
Deputy Secretary-General       

Michotte, A. (Belgium)
Drever, J. Jr (UK)
Mailloux, N. (Canada)
Klineberg, O. (USA)
Duijker, H. C.J. (The Netherlands)

Bartlett, F.C. (UK)
Mäki, N. (Finland)
Nuttin, J. (Belgium)
Piaget, J. (Switzerland)
Piéron, H. (France)
Russell, R.W. (USA)
Skard, A. (Norway)

1960-1963

President
Vice President
Treasurer
Secretary-General
Deputy Secretary-General       

Klineberg, O. (USA)
Duijker, H. C. J. (The Netherlands)
Mailloux, N. (Canada)
Russell, R. W. (USA)
Westerlund, G. (Sweden)

Drever, J. Jr (UK)
Fraisse, P. (France)
Leontiev, A.N. (USSR)
Nuttin, J. (Belgium)
Piaget, J. (Switzerland)
Sato, K. (Japan)
Skard, A. (Norway)

1963-1966

President
Vice President
Treasurer
Secretary-General
Deputy Secretary-General       

Drever, J. (UK)
Fraisse, P. (France)
Mailloux, N. (Canada)
Russell, R. W. (USA)
Westerlund, G. (Sweden)

1966-1969

President
Vice President
Treasurer
Secretary-General
Deputy Secretary-General       

Fraisse, P. (France)
Leontiev, A. N. (USSR)
Russell, R. W. (USA)
Mailloux, N. (Canada)
Jacobsen, E. H. (USA)
Nielsen, G. (Denmark)

Klineberg, O. (USA)
Luria, A.R. (USSR)
Nuttin, J. (Belgium)
Pfaffmann, C. (USA)
Piaget, J. (Switzerland)
Sato, K. (Japan)
Summerfield, A. (UK)
Tomaszewski, T. (Poland)
Yela, M. (Spain)

1969-1972

President
Vice Presidents

Treasurer
Secretary-General
Deputy Secretary-General       

Russell, R. W. (USA)
Luria, A. R. (USSR)
Nuttin, J. (Belgium)
Mailloux, N. (Canada)
Jacobsen, E. H. (USA)
Nielsen G. (Denmark)

1972 - 1976

President
Vice Presidents

Treasurer
Secretary-General
Deputy Secretary-General       

Nuttin, J. (Belgium)
Summerfield, A. (UK)
Tanaka, Y. (Japan)
Mailloux, N. (Canada)
Holtzman, W. H. (USA)
Montmillin, G. de (France)

1976 - 1980

President
Vice Presidents

Treasurer

Secretary-General
Deputy Secretary-General       

Summerfield, A. (UK)
Diaz-Guerrero, R. (Mexico)
Lomov, B. F. (USSR)
Mailloux, N. (Canada) 1976-77
Bélanger, D. (Canada) 1977-80
Holtzman, W. H. (USA)
Montmillin, G. de (France) 1976-78
Pawlik, K. (FRG) 1978-80 

1980 - 1984

President
Vice Presidents

Treasurer
Secretary-General
Deputy Secretary-General

Klix, F. (GDR)
Rosenzweig, M. R. (USA)
Tomaszewski, T. (Poland)
Bélanger, D. (Canada) 
Holtzman, W. H. (USA)
Pawlik, K. (FRG8) 

1984 - 1988

President
Vice Presidents

Treasurer
Secretary-General
Deputy Secretary-General       

Hotlzman, W.H. (USA)
Diaz-Guerrero, R. (Mexico)
Lomov, B. F. (USSR)
Bélanger, D. (Canada)
Pawlik, K. (FRG)
Farr, R. (UK) 1984-7
d’Ydewalle, G. (Belgium) 1987-88

1988 - 1992

President
Vice Presidents

Treasurer
Secretary-General
Deputy Secretary-General       

Rosenzweig, M.R. (USA)
Azuma, H. (Japan)
Takala, M. (Finland)
Bélanger, D. (Canada)
Pawlik, K. (FRG)
d’Ydewalle, G. (Belgium)

1992-1996

President
Past President
Vice Presidents

Treasurer

Secretary-General
Deputy Secretary-General       

Pawlik, K. (Germany)
Rosenzweig, M. (USA)
Jing, Q. (China)
Nilsson, L. G. (Sweden)
Bélanger, D. (Canada) 1992
Sabourin, M. (Canada) 1993-1996
d’Ydewalle, G. (Belgium)
Overmier, J. B. (USA)

Abou-Hatab, F. (Egypt)
Ardila, R. (Colombia)
Blackman, D. (UK)
Denis, M. (France)
Gelman, R. (USA)
Hogan, T.P. (Canada)
Imada, H. (Japan)
Kagitcibasi, C. (Turkey)
Sinha, D. (India)
Strelau, J. (Poland)

1996-2000

President
Past President
Vice Presidents

Treasurer
Secretary-General
Deputy Secretary-General       

d’Ydewalle, G. (Belgium)
Pawlik, K. (Germany)
Kagitcibasi, C. (Turkey)
Strelau, J. (Poland)
Sabourin, M. (Canada)
Ritchie, P. L.-J. (Canada)
Overmier, J. B. (USA) 1996-98
Bullock, M. (Estonia) 1998-

Adair, J. G. (Canada)
Ardila, R. (Colombia)
Blackman, D. (UK) 1996-98
Denis, M. (France)
Imada, H. (Japan)
Nilsson, L.G. (Sweden)
Overmier, J.B. (USA)
Poortinga, Y.H. (The Netherlands)
Sánchez Sosa, J.J. (Mexico)                                    
Zhang, H. (China)

2000 - 2004

President
Past President
Vice Presidents

Treasurer
Secretary-General
Deputy Secretary-General       

Denis, M. (France)
d’Ydewalle, G. (Belgium)
Sanchez-Sosa, J. J. (Mexico)
Zhang, H. (China)
Sabourin, M. (Canada)
Ritchie, P. L.-J. (Canada)
Bullock, M. (USA)

Adair, J.G. (Canada)
Ardila, R. (Colombia)
Cooper, S. (South Africa)
Imada, H. (Japan)
Kagitcibasi, C. (Turkey)
Lunt, I. (UK)
Nair, E. (Singapore)
Overmier, J.B. (USA)
Poortinga, Y.H. (The Netherlands)
Silbereisen, R.K. (Germany)

2004-2008

President
Past President
Vice Presidents:

Treasurer
Secretary-General
Deputy Secretary-General       

Overmier, J. B. (USA)
Denis, M. (France)
Cooper, S. (South Africa)
Lunt, I. (UK)
Sabourin, M. (Canada)
Ritchie, P. L.-J. (Canada)
Bullock, M. (USA)

Carpintero, H. (Spain)
Georgas, J. (Greece)
Khan, H.K. (Yemen)
Kuwano, S. (Japan)
Lemaire, P. (France)
Nair, E. (Singapore)
Sánchez Sosa, J.J. (Mexico)
Silbereisen, R.K. (Germany)     
Tversky, B. (USA)
Zhang, K. (China)

2008 - 2012

President
Past President
Vice President
Treasurer
Secretary-General
Deputy Secretary-General       

Silbereisen, R. K. (Germany) 
Overmier, J. B. (USA)
Zhang, K. (China)
Sabourin, M. (Canada)
Ritchie, P. L.-J. (Canada)
Bullock, M. (USA) 2008-2010
Watts, A. (South Africa) 2010-2012  

Carpintero, H. (Spain)
Frensch, P. (Germany)
Georgas, J. (Greece)
Hernandez-Guzman, L. (Mexico)
Larssen, M. (Sweden)
Maras, P. (UK)
Pandey, J. (India)
Soygut, G. (Turkey)
Tversky, B. (USA)
Watts, A. (South Africa, 2008-2010)