ContributorsPETER SUEDFELD is dean emeritus of graduate studies and professor
emeritus of psychology at the University of British Columbia in
Vancouver. The development of the integrative (state) model of com-
plexity and the method of scoring complexity from archival materi-
als began as part of his long-term research program on coping and
adaptation during and after critical decision situations, traumatic
experiences, and extreme and unusual environments.
PHILIP E. TETLOCK is professor of organizational behavior at the
Haas School of Business at the University of California, Berkeley. He
has received scientific achievement awards from a variety of profes-
sional societies, including the National Academy of Sciences, the
American Association for the Advancement of Science, the American
Political Science Association, and the American Psychological Asso-
ciation. He has contributed to a wide range of professional journals
and books. His current interests include the study of social and polit-
ical cognition and the problems of assessing rationality in organiza-
tional contexts.
STEPHEN G. WALKER, professor of political science at Arizona State
University, had done research on leaders and decision making funded
by the National Science Foundation. His publications have appeared
in International Studies Quarterly, World Politics, Journal of Politics,
Journal of Peace Research, and Political Psychology. He is currently vice
president of the International Studies Association and has also served
as vice president of the International Society of Political Psychology.
WALTER WEINTRAUB, M.D., is clinical professor in the Department of
Psychiatry of the University of Maryland School of Medicine. A psy-
choanalyst, teacher, and clinical investigator, he is the author of Ver-
bal Behavior: Adaptation andPsychopathology (1981) and Verbal Behav-
ior in Everyday Life (1989). Dr. Weintraub is a member of the
American Psychoanalytic Association and the International Psycho-
analytic Association and a fellow of the American Psychiatric Asso-
ciation. As a consultant to the U.S. government, he has developed
procedures for analyzing the speech patterns of world leaders.
DAVID G. WINTER is professor of psychology at the University of
Michigan. He was educated at Harvard and Oxford Universities.
Within the subjects of personality and social psychology, his