PROFESSIONAL PARTICIPATION:

- Founding member of the Turkish Academy of Sciences (1993 – present)

- President and Past President of the International Association for Cross-Cultural Psychology (1990-1994); previous offices: President-elect and Vice President (1988-1990); Deputy Secretary General (1986-1988) and Executive Council member (1982- 1994).

- Vice President (1996-2000) and Executive Council Member of the International Union of Psychological Science (1988-2004), affiliated with ICSU and ISSC under the auspices of UNESCO.

- President of the Turkish Psychological Association (1992-1994)

- Associate Editor of the Journal of Cross-Cultural Psychology (1991-1993)

- Present or past Member of Editorial  Board: International Journal of Psychology;

International Migration; Turkish Psychology Journal; Hacettepe Journal of Population Studies; Journal of Economic Psychology;  Cross-Cultural Psychology Monographs; Psychology and Developing Societies;  Applied Psychology: An International Review; Early Childhood Research; Journal of Applied Developmental Psychology

- Member of International Advisory Board of Editors: International Handbook of Psychology; International Encyclopedia of Psychology

- Member of International Association for Cross-Cultural Psychology; International Council of Psychologists; Turkish Psychological Association; Turkish Social Science Association; International Society for the Study of Behavioral Development, International Association of Applied Psychology; Foreign affiliate of the American Psychological Association

- Founding member and Trustee of Turkish Cultural Foundation (1973 – present).

- Trustee of AFS International/Intercultural Programs (1978-1987)   

- Member of the Advisory Board of Middle East Research Awards in Population and Development (Ford Foundation-IDRC-Population Council) (1986-89)

- Advisor to the Consultative Group an Early Childhood Care and Development, UNICEF (1986-1997)

- Member of the five-person International Board of Editors of the Encyclopedia Britannica, Children's Britannica and Compton's Encyclopedia Turkish Versions.

(completed, 1993)

- Organizer of the 8th Biennial International Congress of Cross-Cultural Psychology (6-10 July 1986)

- Member of the Simavi Foundation Social Science Award Jury (1981-1993)

- Member of C. T. Gürson Child Health Foundation Award Jury (1985-1993)

- Member of the Milliyet Social Science Award Jury (1986)

- Member of the High/Scope Educational Research Foundation IEA Preprimary Project Content Review Panel, (1992-2000)

-Member of the Advisory Board, International Literacy Institute (University of   Pennsylvania) (1994-2000)

- Founding member and Scientific Advisor, member of the Board of Directors, Mother-Child Education Foundation (1993-present)

- Member of the Scientific Board, Turkish Foundation for Economic and Social Studies (1996-2000)

- Member of the Aydın Doğan Social Science Jury, 1998

- Member of the Advisory Board of St. Francis College Center for International and Cross-Cultural Psychology, New York

- Honorary member of Turkish Australian Society

- Member of Scientific Committee of CROP (Comparative Research Program on Poverty) of the International Social Science Council (1996-1999)

- Member of the International Children’s Center Board of Advisors (2000 – present)

- Member, Koç University, Faculty Council 1995 – present)

- Member, Advisory Committee of XVIII. International Congress of Psychology, 8-13 August, 2004, Beijing, China.

- Turkish Psychological Association; Turkish Social Science Association. 

- Member, Advisory Board, Educational Reform Initiative (1998 – present)

- Member of the Evaluation Board of the European Science Foundation’s Standing Committees in the Social Sciences and Humanities (2002)

- Vice President and Member, Executive Council of the International Social Science Council (under the auspices of UNESCO (2002- 2008)

- Member of the Policy Committee for Science in Developing Countries of the International Council for Science (ICSU)

- Chair, Nominating Committee for Social Sciences of  TWAS, the Academy  of  Sciences for the Developing World, 2010.

- Honorary President, IACCP Regional Congress of Cross-Cultural Psychology, Istanbul, Turkey, June 30 –July 3, 2011.

- Chair, Scientific Committee, The 12^th European Congress of Psychology, Istanbul, Turkey, July, 4 – 8, 2011.