Membership in Departmental Educational Policy Committee, Interdepartmental Research Policy Committee, and Search Committees for several staff vacancies, Institute for General Linguistics, University of Amsterdam.

Served December 1972 to May 1974 and May 1977 to April 1978 as chair of the Institute for General Linguistics, University of Amsterdam.

Membership in Human Development Doctoral Admissions Committee, Masters' Admissions Committee, Reading Search Committees, Administration Policy and Social Planning Search Committee of the Harvard Graduate School of Education.

Harvard Graduate School of Education Committee on Degrees, member (1981-1987), chair (1985-1987).

Harvard-Radcliffe Child Care Council, co-chair (1981-1984), member (1984-1989).

Chair, Task Force on Teaching Fellows, Harvard Graduate School of Education, 1984.

Member, Search Committee, Neurolinguistics Laboratory, Massachusetts General Hospital, 1986-87.

Acting chair, Human Development and Psychology, Harvard Graduate School of Education, spring 1988.

Chair, Human Development and Psychology Doctoral Admissions, 1990.

Academic Dean, Harvard Graduate School of Education, 1990-1993.

Acting Dean, Harvard Graduate School of Education, 1991-1992.

Chair, Human Development and Psychology Department, 1992-94, 1995-1999.

Chair, Teacher Education Review Committee, HGSE, 1995-1997.

Chair, Literacy Search Committee, HGSE, 1998-1999.

Chair, Early Childhood Education Search Committee, HGSE, 1999-2000.