Key Note Address: New directions on adolescent research Developing a cross-cultural methodology for working with street children. 7th Biennial Conference of the European Association for Research on Adolescence, Friedrich Schiller University of Jena, Germany, June 3, 2000. Download
	Key Note Address: A world view of street children in the year 2,000 Program for Street children symposium, UNICEF City 2,000. Jyvaskyla, Finland, April 4, 2000. Download
	Invited Workshop: "The changing developmental dynamics of children in particularly difficult circumstances: Some examples of street and war-traumatized children." Presented at the Childhood and Adolescence in Cross-cultural Perspective - A New York Academy of Sciences Workshop. October 27-8, 2000, New York. Download
	Invited Symposium: African Refugees: A case study of Kaliti, Ethiopia. Child and family study group, Cambridge University, March 29, 2000. Download
	First International Conference on AIDS in Ethiopia, "HIV positive adolescence among the displaced population of Ethiopia: A case study from Kaliti Camp. Addis Ababa, Ethiopia, November 9, 1999.
	University of Amsterdam, International Development Research Association, International Conference on Refugees and the Transformation of Society: Loss and Recovery. Paper presentation, "Providing mental health services to refugees: Understanding the changing roles of gender and age among the displaced in Addis Ababa, Ethiopia", April 22, 1999.
	Society for Cross-cultural Research, Santa Fe, New Mexico, February 4, 1999. Video narrative presentation in Symposium on Adolescents Across Cultures, Providing Mental Health Services to Refugees: Understanding the Changing Role of Gender and Age Among the Displaced of Addis Ababa, Ethiopia.
	Nehru Visiting Professor: M. S. University of Baroda, Vadodara, India, January 11, 1999. Street children: A cross cultural perspective.
	Invited Keynote: International Society for the Study of Behavioral Development, Windhoek, Namibia, July, 22,1998. Adolescence and youth among displaced Ethiopians: A case study in Kaliti Camp.
	Chair, 6th Annual BOLESWA Conference, Gabaronne, Botswana, August 8, 1995. Training teachers to work with street children.
	Invited Workshop: Norwegian Center for Child Research, Haholmen, Norway, May 2-24, 1995. Using drawings to understand traumatized children.
	Invited Keynote: Human Sciences Research Council, Pretoria, S. Africa, March 9, 1995. Cross-cultural problems faced by people who work with street children.
	Invited Keynote: International Society for the Study of Behavioral Development (ISSBD), Chandigarh, India, November 21, 1995. A culturally sensitive plan for working with street children. Download
	Invited Workshop: Norwegian Center for Child Research, Haholmen, Norway, May 2--24, 1995. Using drawings to understand traumatized children.
	Invited Keynote: Human Sciences Research Council, Pretoria, S. Africa, March 9, 1995. Cross-cultural problems faced by people who work with street children.
	Invited Presenter: United Nations Volunteers Geneva, Switzerland, November 22-23, 1994. Street children of Kenya.
	Visiting Professor, graduate seminar: Visiting Professor, graduate seminar, Johns Hopkins University, Baltimore, Maryland, January 11-15, 1993. Training counselors to work with drug and alcohol problems.
	Invited Workshop: US/Japan Workshop on Urban Earthquake Hazard Reduction, Honolulu, Hawaii, November 14, 1991. "Assessing the Mental Health Of Earthquake Victims"