Consultant, Defense and Educational Fund, NAACP, 1963-1968

    Attending Psychiatrist, Grade Square Hospital, New York City, 1968-1970.

    Consultant, White House Conference on Drug Abuse, 1962.

    Consultant on medical aspects of addiction, 2nd Judicial Circuit, United States Federal Courts Conference,1962.

    Consultant, American Medical Association, Conference on Narcotic Addiction, New York City, 1967.

    Thondike Award (American Psychological Association), 1976, "for outstanding psychological contributions to education."

    General Member, American Psychiatric Association, 1976 present.

    Member, American Orthopsychiatric Association, 1981-present.

    Member, International Editorial Advisory Board, Scuola e Societt (Italy), 1981.

    Member, International Editorial Advisory Board, Psychologie in Erziehung und Unterricht (West Germany), 1981.

    Member, Medical Societies of New York State and of New York and Ulster Counties.

    Visiting Professor of Psychology, University of Carnpinas (Brazil), April 1976.

    Lecturer in Psychology: Universities of Bonn, 1 Heidelberg. Tubingen, Bochum, Augsburg, Trier, Hamburg (West Germany), May-June 1977; Universities Nijmegen, Utrecht, Tilburg Free University of Amsterdam., May 1977.

    Lecturer in Educational and Developmental Psychology, Universities of Tokyo, Osaka, Kyoto, Nagoya International Christian University, Japan, September-October 1978.

    Visiting Lecturer in most of major universities of Canada and New Zealand (as well as the United States).

    Visiting Lecturer in Psychology, University of Rio de Janeiro, Catholic University of Sao Paolo, Institute of Applied Linguistics, Brazil, April 1979.

    Visiting Lecturer in Developmental and Educational Psychology: 25 universities in West Germany, Holland, Austria, Sweden, Norway, and Denmark, May-June 1979.

    Visiting Lecturer in Educational and Clinical Psychology, University of Padua (Italy); Universities of Essen, Düsseldorf, MunIch, January 1984.